diff --git a/samples/mpscore/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps b/samples/mpscore/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps
index 842044ba..b2edf1e5 100644
--- a/samples/mpscore/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps
+++ b/samples/mpscore/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps
@@ -4,7 +4,7 @@
   <languages>
     <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="-1" />
     <use id="35320f26-77cb-4c55-be9f-a97a27770af1" name="jetbrains.mps.logic" version="-1" />
-    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="-1" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="1" />
     <use id="c4803b19-6d89-4a3b-bf82-390769514add" name="jetbrains.mps.lang.coderules" version="-1" />
     <use id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples" version="-1" />
     <use id="3a13115c-633c-4c5c-bbcc-75c4219e9555" name="jetbrains.mps.lang.quotation" version="-1" />
@@ -12,16 +12,12 @@
     <use id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core" version="-1" />
     <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="-1" />
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="-1" />
-    <use id="ed6d7656-532c-4bc2-81d1-af945aeb8280" name="jetbrains.mps.baseLanguage.blTypes" version="-1" />
-    <use id="774bf8a0-62e5-41e1-af63-f4812e60e48b" name="jetbrains.mps.baseLanguage.checkedDots" version="-1" />
-    <use id="760a0a8c-eabb-4521-8bfd-65db761a9ba3" name="jetbrains.mps.baseLanguage.logging" version="-1" />
     <use id="cba985fe-1e96-4f16-9f8d-b07434405d4f" name="jetbrains.mps.lang.smodel.types" version="-1" />
     <use id="4b5b4f8d-d30a-4ef8-9bf4-dfd26af9d462" name="jetbrains.mps.lang.typechecking" version="-1" />
     <use id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem" version="-1" />
     <engage id="4b5b4f8d-d30a-4ef8-9bf4-dfd26af9d462" name="jetbrains.mps.lang.typechecking" />
   </languages>
   <imports>
-    <import index="tpck" ref="r:00000000-0000-4000-0000-011c89590288(jetbrains.mps.lang.core.structure)" />
     <import index="tpee" ref="r:00000000-0000-4000-0000-011c895902ca(jetbrains.mps.baseLanguage.structure)" />
     <import index="tpek" ref="r:00000000-0000-4000-0000-011c895902c0(jetbrains.mps.baseLanguage.behavior)" />
     <import index="mhbf" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.model(MPS.OpenAPI/)" />
@@ -32,18 +28,10 @@
     <import index="w7la" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.evaluation(jetbrains.mps.logic.reactor/)" />
     <import index="cxk7" ref="r:daa544a7-0a5c-49c0-a54c-4c2a5b4868aa(jetbrains.mps.logic.predicate)" />
     <import index="hano" ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.coderules.eval)" />
-    <import index="6pyv" ref="r:e418ad23-36dc-4ed0-b837-26a7fd157da3(jetbrains.mps.lang.coderules.program)" />
-    <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
-    <import index="i348" ref="r:42a15dec-83a9-4fe1-80d6-3bf898c512bd(jetbrains.mps.lang.coderules.template)" />
-    <import index="psr6" ref="r:ce187d46-c94b-47d6-8d77-26aa6af239e8(jetbrains.mps.lang.coderules.macro)" />
-    <import index="av0y" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.program(jetbrains.mps.logic.reactor/)" />
     <import index="1g4i" ref="r:102178da-67ba-49f6-ba73-eb29fa352fe7(jetbrains.mps.typechecking)" />
-    <import index="7n8k" ref="r:475a2e92-d7d4-41c3-98e3-172d70b6f018(jetbrains.mps.logic.program)" />
     <import index="9x2e" ref="r:0730b0d1-7e2f-4982-aac3-8069c5060a9c(jetbrains.mps.lang.typesystem2.reporting)" />
     <import index="2gg1" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.errors(MPS.Core/)" />
     <import index="zdap" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.openapi.util.text(MPS.IDEA/)" />
-    <import index="tpd4" ref="r:00000000-0000-4000-0000-011c895902b4(jetbrains.mps.lang.typesystem.structure)" />
-    <import index="oy3s" ref="r:a6030cee-34eb-4503-b1bf-015fe5cd8c1a(jetbrains.mps.logic.unification)" implicit="true" />
     <import index="tpcu" ref="r:00000000-0000-4000-0000-011c89590282(jetbrains.mps.lang.core.behavior)" implicit="true" />
   </imports>
   <registry>
@@ -89,16 +77,8 @@
         <child id="1173175577737" name="index" index="AHEQo" />
         <child id="1173175590490" name="array" index="AHHXb" />
       </concept>
-      <concept id="1188207840427" name="jetbrains.mps.baseLanguage.structure.AnnotationInstance" flags="nn" index="2AHcQZ">
-        <reference id="1188208074048" name="annotation" index="2AI5Lk" />
-        <child id="1188214630783" name="value" index="2B76xF" />
-      </concept>
-      <concept id="1188208481402" name="jetbrains.mps.baseLanguage.structure.HasAnnotation" flags="ng" index="2AJDlI">
-        <child id="1188208488637" name="annotation" index="2AJF6D" />
-      </concept>
-      <concept id="1188214545140" name="jetbrains.mps.baseLanguage.structure.AnnotationInstanceValue" flags="ng" index="2B6LJw">
-        <reference id="1188214555875" name="key" index="2B6OnR" />
-        <child id="1188214607812" name="value" index="2B70Vg" />
+      <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
+        <reference id="2820489544401957798" name="classifier" index="HV5vE" />
       </concept>
       <concept id="1154032098014" name="jetbrains.mps.baseLanguage.structure.AbstractLoopStatement" flags="nn" index="2LF5Ji">
         <child id="1154032183016" name="body" index="2LFqv$" />
@@ -125,15 +105,10 @@
         <child id="1164903359218" name="catchBody" index="TDEfX" />
         <child id="1164903359217" name="throwable" index="TDEfY" />
       </concept>
-      <concept id="1070462154015" name="jetbrains.mps.baseLanguage.structure.StaticFieldDeclaration" flags="ig" index="Wx3nA" />
       <concept id="1070475354124" name="jetbrains.mps.baseLanguage.structure.ThisExpression" flags="nn" index="Xjq3P" />
-      <concept id="1070475587102" name="jetbrains.mps.baseLanguage.structure.SuperConstructorInvocation" flags="nn" index="XkiVB" />
       <concept id="1070475926800" name="jetbrains.mps.baseLanguage.structure.StringLiteral" flags="nn" index="Xl_RD">
         <property id="1070475926801" name="value" index="Xl_RC" />
       </concept>
-      <concept id="1182160077978" name="jetbrains.mps.baseLanguage.structure.AnonymousClassCreator" flags="nn" index="YeOm9">
-        <child id="1182160096073" name="cls" index="YeSDq" />
-      </concept>
       <concept id="1081236700938" name="jetbrains.mps.baseLanguage.structure.StaticMethodDeclaration" flags="ig" index="2YIFZL" />
       <concept id="1081236700937" name="jetbrains.mps.baseLanguage.structure.StaticMethodCall" flags="nn" index="2YIFZM">
         <reference id="1144433194310" name="classConcept" index="1Pybhc" />
@@ -168,13 +143,7 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1109279763828" name="jetbrains.mps.baseLanguage.structure.TypeVariableDeclaration" flags="ng" index="16euLQ" />
-      <concept id="1109279851642" name="jetbrains.mps.baseLanguage.structure.GenericDeclaration" flags="ng" index="16eOlS">
-        <child id="1109279881614" name="typeVariableDeclaration" index="16eVyc" />
-      </concept>
-      <concept id="1109283449304" name="jetbrains.mps.baseLanguage.structure.TypeVariableReference" flags="in" index="16syzq">
-        <reference id="1109283546497" name="typeVariableDeclaration" index="16sUi3" />
-      </concept>
+      <concept id="1109283449304" name="jetbrains.mps.baseLanguage.structure.TypeVariableReference" flags="in" index="16syzq" />
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
         <reference id="1068581517664" name="variableDeclaration" index="3cqZAo" />
       </concept>
@@ -198,9 +167,7 @@
         <child id="1068580123134" name="parameter" index="3clF46" />
         <child id="1068580123135" name="body" index="3clF47" />
       </concept>
-      <concept id="1068580123165" name="jetbrains.mps.baseLanguage.structure.InstanceMethodDeclaration" flags="ig" index="3clFb_">
-        <property id="1178608670077" name="isAbstract" index="1EzhhJ" />
-      </concept>
+      <concept id="1068580123165" name="jetbrains.mps.baseLanguage.structure.InstanceMethodDeclaration" flags="ig" index="3clFb_" />
       <concept id="1068580123152" name="jetbrains.mps.baseLanguage.structure.EqualsExpression" flags="nn" index="3clFbC" />
       <concept id="1068580123155" name="jetbrains.mps.baseLanguage.structure.ExpressionStatement" flags="nn" index="3clFbF">
         <child id="1068580123156" name="expression" index="3clFbG" />
@@ -252,7 +219,6 @@
         <child id="1212687122400" name="typeParameter" index="1pMfVU" />
       </concept>
       <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
-        <property id="521412098689998745" name="nonStatic" index="2bfB8j" />
         <child id="5375687026011219971" name="member" index="jymVt" unordered="true" />
       </concept>
       <concept id="1171903607971" name="jetbrains.mps.baseLanguage.structure.WildCardType" flags="in" index="3qTvmN" />
@@ -311,9 +277,6 @@
       <concept id="1146644623116" name="jetbrains.mps.baseLanguage.structure.PrivateVisibility" flags="nn" index="3Tm6S6" />
       <concept id="1146644641414" name="jetbrains.mps.baseLanguage.structure.ProtectedVisibility" flags="nn" index="3Tmbuc" />
       <concept id="1080120340718" name="jetbrains.mps.baseLanguage.structure.AndExpression" flags="nn" index="1Wc70l" />
-      <concept id="1170345865475" name="jetbrains.mps.baseLanguage.structure.AnonymousClass" flags="ig" index="1Y3b0j">
-        <reference id="1170346070688" name="classifier" index="1Y3XeK" />
-      </concept>
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
       <concept id="1235746970280" name="jetbrains.mps.baseLanguage.closures.structure.CompactInvokeFunctionExpression" flags="nn" index="2Sg_IR">
@@ -332,19 +295,11 @@
       <concept id="5858074156537516430" name="jetbrains.mps.baseLanguage.javadoc.structure.ReturnBlockDocTag" flags="ng" index="x79VA">
         <property id="5858074156537516431" name="text" index="x79VB" />
       </concept>
-      <concept id="6832197706140518104" name="jetbrains.mps.baseLanguage.javadoc.structure.DocMethodParameterReference" flags="ng" index="zr_55" />
-      <concept id="6832197706140518103" name="jetbrains.mps.baseLanguage.javadoc.structure.BaseParameterReference" flags="ng" index="zr_5a">
-        <reference id="6832197706140518108" name="param" index="zr_51" />
-      </concept>
       <concept id="5349172909345501395" name="jetbrains.mps.baseLanguage.javadoc.structure.BaseDocComment" flags="ng" index="P$AiS">
         <child id="8465538089690331502" name="body" index="TZ5H$" />
         <child id="5383422241790532083" name="tags" index="3nqlJM" />
       </concept>
       <concept id="5349172909345532724" name="jetbrains.mps.baseLanguage.javadoc.structure.MethodDocComment" flags="ng" index="P$JXv" />
-      <concept id="8465538089690881930" name="jetbrains.mps.baseLanguage.javadoc.structure.ParameterBlockDocTag" flags="ng" index="TUZQ0">
-        <property id="8465538089690881934" name="text" index="TUZQ4" />
-        <child id="6832197706140518123" name="parameter" index="zr_5Q" />
-      </concept>
       <concept id="8465538089690331500" name="jetbrains.mps.baseLanguage.javadoc.structure.CommentLine" flags="ng" index="TZ5HA">
         <child id="8970989240999019149" name="part" index="1dT_Ay" />
       </concept>
@@ -385,6 +340,9 @@
       </concept>
     </language>
     <language id="7a5dda62-9140-4668-ab76-d5ed1746f2b2" name="jetbrains.mps.lang.typesystem">
+      <concept id="1188473524530" name="jetbrains.mps.lang.typesystem.structure.MeetType" flags="ng" index="2QyH0A">
+        <child id="1188473537547" name="argument" index="2QyKkv" />
+      </concept>
       <concept id="1185281562361" name="jetbrains.mps.lang.typesystem.structure.RuntimeErrorType" flags="in" index="3SilvE" />
     </language>
     <language id="35320f26-77cb-4c55-be9f-a97a27770af1" name="jetbrains.mps.logic">
@@ -535,6 +493,7 @@
         <property id="1193676396447" name="virtualPackage" index="3GE5qa" />
         <child id="5169995583184591170" name="smodelAttribute" index="lGtFl" />
       </concept>
+      <concept id="1234971358450" name="jetbrains.mps.lang.core.structure.IType" flags="ng" index="2a1RnH" />
       <concept id="3364660638048049750" name="jetbrains.mps.lang.core.structure.PropertyAttribute" flags="ng" index="A9Btg">
         <property id="1757699476691236117" name="name_DebugInfo" index="2qtEX9" />
         <property id="1341860900487648621" name="propertyId" index="P4ACc" />
@@ -574,7 +533,6 @@
       <concept id="540871147943773365" name="jetbrains.mps.baseLanguage.collections.structure.SingleArgumentSequenceOperation" flags="nn" index="25WWJ4">
         <child id="540871147943773366" name="argument" index="25WWJ7" />
       </concept>
-      <concept id="1204980550705" name="jetbrains.mps.baseLanguage.collections.structure.VisitAllOperation" flags="nn" index="2es0OD" />
       <concept id="1151688443754" name="jetbrains.mps.baseLanguage.collections.structure.ListType" flags="in" index="_YKpA">
         <child id="1151688676805" name="elementType" index="_ZDj9" />
       </concept>
@@ -2640,43 +2598,49 @@
     </node>
   </node>
   <node concept="AVZre" id="5MHpiylysUh">
-    <property role="TrG5h" value="SubtypingPaths" />
+    <property role="TrG5h" value="SubclassPaths" />
     <property role="3GE5qa" value="relation" />
-    <node concept="3AqmO8" id="2q0gzCFHojT" role="8PkJo">
-      <property role="TrG5h" value="subtypePaths" />
-      <property role="3AqDzJ" value="2" />
-      <node concept="1zAUYm" id="1_2bK$p0sjE" role="1zAUyy">
-        <property role="TrG5h" value="Result" />
+    <node concept="3AqmO8" id="2rIdnPuJSDR" role="8PkJo">
+      <property role="TrG5h" value="subclassPaths" />
+      <node concept="1zAUYm" id="2rIdnPuJSDW" role="1zAUyy">
+        <property role="TrG5h" value="paths" />
       </node>
-      <node concept="1zAUYm" id="1_2bK$p0sjG" role="1zAUyy">
-        <property role="TrG5h" value="ClassAnchor" />
+      <node concept="1zAUYm" id="2rIdnPuJSDY" role="1zAUyy">
+        <property role="TrG5h" value="clsType" />
+      </node>
+      <node concept="1zAsnw" id="2rIdnPuJSE1" role="lGtFl">
+        <node concept="3SKdUq" id="2rIdnPuJSE2" role="27qylF">
+          <property role="3SKdUp" value="yields a list of &quot;subclassing paths&quot;, which all originate at classifier and go up to Object" />
+        </node>
       </node>
     </node>
-    <node concept="1nLNMY" id="12QmIo_7sk8" role="1nK1Vg">
-      <property role="TrG5h" value="findSubtypePaths_Classifier" />
-      <node concept="3clFbS" id="12QmIo_7sk9" role="1nLNMH">
-        <node concept="3cpWs8" id="12QmIo_7ska" role="3cqZAp">
-          <node concept="3cpWsn" id="2q0gzCFIXgU" role="3cpWs9">
+    <node concept="1nLNMY" id="2rIdnPuJSEv" role="1nK1Vg">
+      <property role="TrG5h" value="findSubclassPaths_Classifier" />
+      <node concept="3clFbS" id="2rIdnPuJSEw" role="1nLNMH">
+        <node concept="3cpWs8" id="2rIdnPuJSEx" role="3cqZAp">
+          <node concept="3cpWsn" id="2rIdnPuJSEy" role="3cpWs9">
             <property role="TrG5h" value="subtypePaths" />
-            <node concept="_YKpA" id="2q0gzCFIXh2" role="1tU5fm">
-              <node concept="_YKpA" id="2shrukT_gze" role="_ZDj9">
-                <node concept="3Tqbb2" id="2shrukT_gKV" role="_ZDj9" />
+            <node concept="_YKpA" id="2rIdnPuJSEz" role="1tU5fm">
+              <node concept="_YKpA" id="2rIdnPuJSE$" role="_ZDj9">
+                <node concept="3Tqbb2" id="2rIdnPuJSE_" role="_ZDj9">
+                  <ref role="ehGHo" to="tpee:g7uibYu" resolve="ClassifierType" />
+                </node>
               </node>
             </node>
-            <node concept="2YIFZM" id="2FXL1yZvCpQ" role="33vP2m">
+            <node concept="2YIFZM" id="2rIdnPuJSEA" role="33vP2m">
               <ref role="37wK5l" to="hano:2tjs8VC2Blb" resolve="getOrPut" />
               <ref role="1Pybhc" to="hano:2tjs8VC0K0m" resolve="Memoizer" />
-              <node concept="3A2sRY" id="2tjs8VC3ftA" role="37wK5m">
-                <ref role="3A2yKK" node="2q0gzCFIV7W" resolve="cls" />
+              <node concept="3A2sRY" id="2rIdnPuJSEB" role="37wK5m">
+                <ref role="3A2yKK" node="2rIdnPuJSFs" resolve="cls" />
               </node>
-              <node concept="1bVj0M" id="2tjs8VC3ftB" role="37wK5m">
-                <node concept="3clFbS" id="2tjs8VC3ftC" role="1bW5cS">
-                  <node concept="3clFbF" id="2tjs8VC3ftD" role="3cqZAp">
-                    <node concept="2YIFZM" id="2tjs8VC3ftE" role="3clFbG">
+              <node concept="1bVj0M" id="2rIdnPuJSEC" role="37wK5m">
+                <node concept="3clFbS" id="2rIdnPuJSED" role="1bW5cS">
+                  <node concept="3clFbF" id="2rIdnPuJSEE" role="3cqZAp">
+                    <node concept="2YIFZM" id="2rIdnPuJSEF" role="3clFbG">
                       <ref role="1Pybhc" node="tIwzd2cJHD" resolve="SubclassingUtil" />
                       <ref role="37wK5l" node="5H6hZahiCgu" resolve="allSubtypePathsTo" />
-                      <node concept="3A2sRY" id="2tjs8VC3ftF" role="37wK5m">
-                        <ref role="3A2yKK" node="2q0gzCFIV7W" resolve="cls" />
+                      <node concept="3A2sRY" id="2rIdnPuJSEG" role="37wK5m">
+                        <ref role="3A2yKK" node="2rIdnPuJSFs" resolve="cls" />
                       </node>
                     </node>
                   </node>
@@ -2685,469 +2649,203 @@
             </node>
           </node>
         </node>
-        <node concept="Oftf1" id="12QmIo_7skg" role="3cqZAp">
-          <node concept="2OqwBi" id="4vBwiiUTNum" role="Oftjs">
-            <node concept="2OqwBi" id="4vBwiiUSsis" role="2Oq$k0">
-              <node concept="3A2sRY" id="4vBwiiUSrZk" role="2Oq$k0">
-                <ref role="3A2yKK" node="2q0gzCFIV7W" resolve="cls" />
+        <node concept="Oftf1" id="2rIdnPuJSEH" role="3cqZAp">
+          <node concept="2OqwBi" id="2rIdnPuJSEI" role="Oftjs">
+            <node concept="2OqwBi" id="2rIdnPuJSEJ" role="2Oq$k0">
+              <node concept="3A2sRY" id="2rIdnPuJSEK" role="2Oq$k0">
+                <ref role="3A2yKK" node="2rIdnPuJSFs" resolve="cls" />
               </node>
-              <node concept="2qgKlT" id="4vBwiiUTKVm" role="2OqNvi">
+              <node concept="2qgKlT" id="2rIdnPuJSEL" role="2OqNvi">
                 <ref role="37wK5l" to="tpek:1UeCwxlWKny" resolve="getExtendedClassifierTypes" />
               </node>
             </node>
-            <node concept="3$u5V9" id="4vBwiiUTRKI" role="2OqNvi">
-              <node concept="1bVj0M" id="4vBwiiUTRKK" role="23t8la">
-                <node concept="3clFbS" id="4vBwiiUTRKL" role="1bW5cS">
-                  <node concept="3clFbF" id="4vBwiiUTRWP" role="3cqZAp">
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-                        <property role="3SKdUp" value="FIXME: WTF? ClsType is not used" />
-                      </node>
-                    </node>
-                    <node concept="3Aqczg" id="4MEOIDFrynz" role="3cqZAp">
-                      <node concept="B_ONY" id="4MEOIDFrynr" role="3Aqpz8">
-                        <ref role="17QRF" node="7XRk2O3zfxt" resolve="classifierType" />
-                        <node concept="a7P8L" id="4MEOIDFrypA" role="B_OMz">
-                          <ref role="a7OzE" node="2jjvHNv9zcf" resolve="ClsType" />
-                        </node>
-                        <node concept="1Q7qz5" id="4MEOIDFrynx" role="150vd">
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-                            <ref role="1Q7tcy" node="7XRk2O3zfpB" resolve="cls1" />
-                            <node concept="3A2sRY" id="4MEOIDFrypJ" role="1KxKwY">
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+                <node concept="3IrJb3" id="2rIdnPuJSFk" role="3I6sU7">
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+                      <node concept="3cpWsn" id="2rIdnPvQhLh" role="3cpWs9">
                         <property role="TrG5h" value="paths" />
-                        <node concept="_YKpA" id="2jjvHNvaKDD" role="1tU5fm">
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-                            <node concept="3Tqbb2" id="2jjvHNvaKDL" role="_ZDj9" />
+                        <node concept="_YKpA" id="2rIdnPvQhL8" role="1tU5fm">
+                          <node concept="3uibUv" id="2rIdnPvQhLb" role="_ZDj9">
+                            <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
                           </node>
                         </node>
-                        <node concept="2ShNRf" id="2jjvHNvaKEf" role="33vP2m">
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-                                <ref role="3cqZAo" node="2jjvHNv9zRN" resolve="subtypePaths" />
+                        <node concept="2ShNRf" id="2rIdnPvQhLi" role="33vP2m">
+                          <node concept="Tc6Ow" id="2rIdnPvQhLj" role="2ShVmc">
+                            <node concept="3uibUv" id="2rIdnPvQhLk" role="HW$YZ">
+                              <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="2Gpval" id="2rIdnPvQfvo" role="3cqZAp">
+                      <node concept="2GrKxI" id="2rIdnPvQfvq" role="2Gsz3X">
+                        <property role="TrG5h" value="sp" />
+                      </node>
+                      <node concept="37vLTw" id="2rIdnPvQfyg" role="2GsD0m">
+                        <ref role="3cqZAo" node="2rIdnPuJSEy" resolve="subtypePaths" />
+                      </node>
+                      <node concept="3clFbS" id="2rIdnPvQfvu" role="2LFqv$">
+                        <node concept="3cpWs8" id="2rIdnPvQmzR" role="3cqZAp">
+                          <node concept="3cpWsn" id="2rIdnPvQmzS" role="3cpWs9">
+                            <property role="TrG5h" value="terms" />
+                            <node concept="A3Dl8" id="2rIdnPvQmz8" role="1tU5fm">
+                              <node concept="3uibUv" id="2rIdnPvQmzb" role="A3Ik2">
+                                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
                               </node>
-                              <node concept="3$u5V9" id="2jjvHNvaPD4" role="2OqNvi">
-                                <node concept="1bVj0M" id="2jjvHNvaPD6" role="23t8la">
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-                                          <node concept="37vLTw" id="2jjvHNvaZqY" role="I$8f6">
-                                            <ref role="3cqZAo" node="2jjvHNvaPD8" resolve="it" />
+                            </node>
+                            <node concept="2OqwBi" id="2rIdnPvQmzT" role="33vP2m">
+                              <node concept="2GrUjf" id="2rIdnPvQmzU" role="2Oq$k0">
+                                <ref role="2Gs0qQ" node="2rIdnPvQfvq" resolve="sp" />
+                              </node>
+                              <node concept="3$u5V9" id="2rIdnPvQmzV" role="2OqNvi">
+                                <node concept="1bVj0M" id="2rIdnPvQmzW" role="23t8la">
+                                  <node concept="3clFbS" id="2rIdnPvQmzX" role="1bW5cS">
+                                    <node concept="3clFbF" id="2rIdnPvQmzY" role="3cqZAp">
+                                      <node concept="10QFUN" id="2rIdnPvQmzZ" role="3clFbG">
+                                        <node concept="3uibUv" id="2rIdnPvQm$8" role="10QFUM">
+                                          <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+                                        </node>
+                                        <node concept="1oi1Uc" id="2rIdnPwf_mM" role="10QFUP">
+                                          <node concept="1oi5XN" id="2rIdnPwf_ou" role="1oi0x0">
+                                            <node concept="22Ky0T" id="2rIdnPwf__6" role="lGtFl">
+                                              <node concept="2OqwBi" id="2rIdnPvQm$3" role="22Ky0K">
+                                                <node concept="2OqwBi" id="2rIdnPvQm$4" role="2Oq$k0">
+                                                  <node concept="37vLTw" id="2rIdnPvQm$5" role="2Oq$k0">
+                                                    <ref role="3cqZAo" node="2rIdnPvQm$9" resolve="type" />
+                                                  </node>
+                                                  <node concept="3TrEf2" id="2rIdnPvQm$6" role="2OqNvi">
+                                                    <ref role="3Tt5mk" to="tpee:g7uigIF" resolve="classifier" />
+                                                  </node>
+                                                </node>
+                                                <node concept="iZEcu" id="2rIdnPvQm$7" role="2OqNvi" />
+                                              </node>
+                                            </node>
                                           </node>
                                         </node>
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="Rh6nW" id="2jjvHNvaPD8" role="1bW2Oz">
-                                    <property role="TrG5h" value="it" />
-                                    <node concept="2jxLKc" id="2jjvHNvaPD9" role="1tU5fm" />
+                                  <node concept="Rh6nW" id="2rIdnPvQm$9" role="1bW2Oz">
+                                    <property role="TrG5h" value="type" />
+                                    <node concept="2jxLKc" id="2rIdnPvQm$a" role="1tU5fm" />
                                   </node>
                                 </node>
                               </node>
                             </node>
-                            <node concept="_YKpA" id="2jjvHNvaKEi" role="HW$YZ">
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-                            </node>
                           </node>
                         </node>
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-                        </node>
-                        <node concept="2es0OD" id="2jjvHNvaMz3" role="2OqNvi">
-                          <node concept="1bVj0M" id="2jjvHNvaMz5" role="23t8la">
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-                                  </node>
-                                  <node concept="TSZUe" id="2jjvHNvaNTf" role="2OqNvi">
-                                    <node concept="2c44tf" id="2jjvHNvb04y" role="25WWJ7">
-                                      <node concept="10P_77" id="2jjvHNvb04z" role="2c44tc" />
+                        <node concept="3clFbF" id="2rIdnPvQhRp" role="3cqZAp">
+                          <node concept="2OqwBi" id="2rIdnPvQj9W" role="3clFbG">
+                            <node concept="37vLTw" id="2rIdnPvQhRn" role="2Oq$k0">
+                              <ref role="3cqZAo" node="2rIdnPvQhLh" resolve="paths" />
+                            </node>
+                            <node concept="TSZUe" id="2rIdnPvQlAf" role="2OqNvi">
+                              <node concept="1nq8_$" id="2rIdnPvQlFq" role="25WWJ7">
+                                <node concept="HAVWr" id="2rIdnPvQlFr" role="1nq8_t">
+                                  <node concept="KCUsM" id="2rIdnPvQlFs" role="HAVW7">
+                                    <node concept="22Ky0T" id="2rIdnPvQlFt" role="lGtFl">
+                                      <node concept="2OqwBi" id="2rIdnPvQlFu" role="22Ky0K">
+                                        <node concept="37vLTw" id="2rIdnPvQmM8" role="2Oq$k0">
+                                          <ref role="3cqZAo" node="2rIdnPvQmzS" resolve="terms" />
+                                        </node>
+                                        <node concept="3_kTaI" id="2rIdnPvQlFw" role="2OqNvi" />
+                                      </node>
                                     </node>
                                   </node>
                                 </node>
                               </node>
                             </node>
-                            <node concept="Rh6nW" id="2jjvHNvaMz7" role="1bW2Oz">
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-                              <node concept="2jxLKc" id="2jjvHNvaMz8" role="1tU5fm" />
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                           </node>
                         </node>
                       </node>
                     </node>
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-                        <node concept="37vLTw" id="2jjvHNvb0iN" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2jjvHNvaKEe" resolve="paths" />
+                    <node concept="3Aqczg" id="2rIdnPuTPY3" role="3cqZAp">
+                      <node concept="3A8Hvi" id="2rIdnPuTPXX" role="3Aqpz8">
+                        <node concept="a7P8L" id="2rIdnPuTPYU" role="3A8wtg">
+                          <ref role="a7OzE" node="2rIdnPuJSEZ" resolve="Paths" />
                         </node>
-                        <node concept="TSZUe" id="2jjvHNvb0Wv" role="2OqNvi">
-                          <node concept="2ShNRf" id="2jjvHNvb0X$" role="25WWJ7">
-                            <node concept="Tc6Ow" id="2jjvHNvb0X_" role="2ShVmc">
-                              <node concept="2c44tf" id="2jjvHNvb0XD" role="HW$Y0">
-                                <node concept="10P_77" id="2jjvHNvb0XE" role="2c44tc" />
+                        <node concept="HAVWr" id="2rIdnPuTQnl" role="3A8w4Q">
+                          <node concept="KCUsM" id="2rIdnPuTQno" role="HAVW7">
+                            <node concept="22Ky0T" id="2rIdnPuTQnp" role="lGtFl">
+                              <node concept="2OqwBi" id="2rIdnPuTQnq" role="22Ky0K">
+                                <node concept="37vLTw" id="2rIdnPvQmNv" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="2rIdnPvQhLh" resolve="paths" />
+                                </node>
+                                <node concept="3_kTaI" id="2rIdnPuTQnT" role="2OqNvi" />
                               </node>
-                              <node concept="3Tqbb2" id="2jjvHNvb0XG" role="HW$YZ" />
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="3clFbF" id="6X1kwjBDIgv" role="3cqZAp">
-                      <node concept="2YIFZM" id="6X1kwjBDIvb" role="3clFbG">
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-                        <ref role="1Pybhc" node="2zBk6uIjXRS" resolve="TypeUtil" />
-                        <node concept="1nq8_$" id="49obaclfijf" role="37wK5m">
-                          <node concept="a7P8L" id="6X1kwjBDI_0" role="1nq8_t">
-                            <ref role="a7OzE" node="2jjvHNv9yAu" resolve="SubtypePaths" />
-                          </node>
-                        </node>
-                        <node concept="37vLTw" id="6X1kwjBDIDZ" role="37wK5m">
-                          <ref role="3cqZAo" node="2jjvHNvaKEe" resolve="paths" />
-                        </node>
-                      </node>
-                    </node>
                   </node>
                 </node>
               </node>
@@ -3155,80 +2853,12 @@
           </node>
         </node>
       </node>
-      <node concept="2t___k" id="2jjvHNv9zxE" role="1nLNMg">
+      <node concept="2t___k" id="2rIdnPuJSFr" role="1nLNMg">
         <ref role="2t_S0q" to="tpee:g7pOWCK" resolve="Classifier" />
-        <node concept="3A20r5" id="2jjvHNv9zxF" role="2t_VXX">
+        <node concept="3A20r5" id="2rIdnPuJSFs" role="2t_VXX">
           <property role="TrG5h" value="cls" />
         </node>
       </node>
-      <node concept="cBwPQ" id="2jjvHNv9zFF" role="1nLFYo">
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-                <node concept="liA8E" id="4cvvxaYia8i" role="2OqNvi">
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-                <node concept="ZC_QK" id="4cvvxaYifes" role="2tJFKM">
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-              </node>
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-                <node concept="aZer4" id="W6bnNdTnaa" role="3XD1gS">
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-                <node concept="aZer4" id="W6bnNdTnaj" role="3XD1gS">
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   </node>
   <node concept="AVZre" id="1zN1RIlreLa">
@@ -5033,6 +4663,68 @@
                                   </node>
                                 </node>
                               </node>
+                              <node concept="3clFbH" id="6N2bvv_4cEh" role="3cqZAp" />
+                              <node concept="1DcWWT" id="6N2bvv_4cPO" role="3cqZAp">
+                                <node concept="3clFbS" id="6N2bvv_4cPR" role="2LFqv$">
+                                  <node concept="3cpWs8" id="6N2bvv_4dvh" role="3cqZAp">
+                                    <node concept="3cpWsn" id="6N2bvv_4dvi" role="3cpWs9">
+                                      <property role="TrG5h" value="typeVar" />
+                                      <node concept="26uTi9" id="6N2bvv_4dvg" role="1tU5fm" />
+                                      <node concept="2OqwBi" id="6N2bvv_4dvj" role="33vP2m">
+                                        <node concept="1$qI8S" id="6N2bvv_4dvk" role="2Oq$k0">
+                                          <ref role="1$qI8I" node="6hqFpWmN1Sp" resolve="substitution" />
+                                        </node>
+                                        <node concept="liA8E" id="6N2bvv_4dvl" role="2OqNvi">
+                                          <ref role="37wK5l" node="6EY0p2w8VOF" resolve="get" />
+                                          <node concept="37vLTw" id="6N2bvv_4dvm" role="37wK5m">
+                                            <ref role="3cqZAo" node="6N2bvv_4cPS" resolve="tvd" />
+                                          </node>
+                                        </node>
+                                      </node>
+                                    </node>
+                                  </node>
+                                  <node concept="3Aqczg" id="6N2bvv_4dyp" role="3cqZAp">
+                                    <node concept="3Aqt3T" id="6N2bvv_4dyn" role="3Aqpz8">
+                                      <ref role="3AqCNq" node="6N2bvv_5W0X" resolve="resolve" />
+                                      <node concept="aZ4PW" id="6N2bvv_aOrQ" role="3AunhB">
+                                        <node concept="37vLTw" id="6N2bvv_aOsn" role="aZ4eD">
+                                          <ref role="3cqZAo" node="6N2bvv_4dvi" resolve="typeVar" />
+                                        </node>
+                                      </node>
+                                    </node>
+                                  </node>
+                                </node>
+                                <node concept="3cpWsn" id="6N2bvv_4cPS" role="1Duv9x">
+                                  <property role="TrG5h" value="tvd" />
+                                  <node concept="2sp9CU" id="6N2bvv_4cPW" role="1tU5fm">
+                                    <ref role="2sp9C9" to="tpee:g96euPO" resolve="TypeVariableDeclaration" />
+                                  </node>
+                                </node>
+                                <node concept="2OqwBi" id="6N2bvv_4cPX" role="1DdaDG">
+                                  <node concept="37vLTw" id="6N2bvv_4cPY" role="2Oq$k0">
+                                    <ref role="3cqZAo" node="6EY0p2yn7eN" resolve="tvds" />
+                                  </node>
+                                  <node concept="3$u5V9" id="6N2bvv_4cPZ" role="2OqNvi">
+                                    <node concept="1bVj0M" id="6N2bvv_4cQ0" role="23t8la">
+                                      <node concept="3clFbS" id="6N2bvv_4cQ1" role="1bW5cS">
+                                        <node concept="3clFbF" id="6N2bvv_4cQ2" role="3cqZAp">
+                                          <node concept="2OqwBi" id="6N2bvv_4cQ3" role="3clFbG">
+                                            <node concept="37vLTw" id="6N2bvv_4cQ4" role="2Oq$k0">
+                                              <ref role="3cqZAo" node="6N2bvv_4cQ6" resolve="it" />
+                                            </node>
+                                            <node concept="iZEcu" id="6N2bvv_4cQ5" role="2OqNvi" />
+                                          </node>
+                                        </node>
+                                      </node>
+                                      <node concept="Rh6nW" id="6N2bvv_4cQ6" role="1bW2Oz">
+                                        <property role="TrG5h" value="it" />
+                                        <node concept="2jxLKc" id="6N2bvv_4cQ7" role="1tU5fm" />
+                                      </node>
+                                    </node>
+                                  </node>
+                                </node>
+                              </node>
+                              <node concept="3clFbH" id="6N2bvv_43ZG" role="3cqZAp" />
                               <node concept="3Aqczg" id="6EY0p2yoBXj" role="3cqZAp">
                                 <node concept="1imXTs" id="6EY0p2yoBXk" role="3Aqpz8">
                                   <node concept="a7P8L" id="6EY0p2yoBXl" role="1imXu6">
@@ -9464,7 +9156,7 @@
   <node concept="AVZre" id="24Vro6cM_J$">
     <property role="3GE5qa" value="relation" />
     <property role="TrG5h" value="Conversion" />
-    <ref role="2YbDB9" node="5310cdpUCzb" resolve="HasBound" />
+    <ref role="2YbDB9" node="6N2bvv_5VYN" resolve="Resolve" />
     <node concept="3AqmO8" id="3Qp4N06bUPu" role="8PkJo">
       <property role="TrG5h" value="convertsTo" />
       <property role="3AqDzJ" value="2" />
@@ -9480,6 +9172,34 @@
         </node>
       </node>
     </node>
+    <node concept="3AqmO8" id="6N2bvv_fIDd" role="8PkJo">
+      <property role="TrG5h" value="convertsToAll" />
+      <node concept="1zAUYm" id="6N2bvv_fIGc" role="1zAUyy">
+        <property role="TrG5h" value="T" />
+      </node>
+      <node concept="1zAUYm" id="6N2bvv_fIGD" role="1zAUyy">
+        <property role="TrG5h" value="list" />
+      </node>
+      <node concept="1zAsnw" id="6N2bvv_fIHX" role="lGtFl">
+        <node concept="3SKdUq" id="6N2bvv_fIHY" role="27qylF">
+          <property role="3SKdUp" value="ensures T converts to all of types in the second arg" />
+        </node>
+      </node>
+    </node>
+    <node concept="3AqmO8" id="2rIdnPw236I" role="8PkJo">
+      <property role="TrG5h" value="convertsOneTo" />
+      <node concept="1zAUYm" id="2rIdnPw236K" role="1zAUyy">
+        <property role="TrG5h" value="list" />
+      </node>
+      <node concept="1zAUYm" id="2rIdnPw236J" role="1zAUyy">
+        <property role="TrG5h" value="T" />
+      </node>
+      <node concept="1zAsnw" id="2rIdnPw236L" role="lGtFl">
+        <node concept="3SKdUq" id="2rIdnPw236M" role="27qylF">
+          <property role="3SKdUp" value="ensures one of the types in the first arg converts to T" />
+        </node>
+      </node>
+    </node>
     <node concept="3AqmO8" id="3MG3BxoG13Q" role="8PkJo">
       <property role="TrG5h" value="convertsToSafe" />
       <node concept="1zAUYm" id="3MG3BxoG149" role="1zAUyy">
@@ -10837,19 +10557,11 @@
                       </node>
                       <node concept="ns1u0" id="6EY0p2zuiwg" role="1uarlW">
                         <ref role="ns1xF" node="6EY0p2zs5$T" resolve="intersectionType" />
-                        <node concept="nsMwS" id="6EY0p2zuiwi" role="ns1xD">
-                          <ref role="nsMwP" node="6EY0p2zs5$W" resolve="left" />
-                          <node concept="1nq8_$" id="6EY0p2zuiwo" role="nsMwV">
-                            <node concept="a7P8L" id="6EY0p2zuiwm" role="1nq8_t">
-                              <ref role="a7OzE" node="6EY0p2zuivz" resolve="Left" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="nsMwS" id="6EY0p2zuiwr" role="ns1xD">
-                          <ref role="nsMwP" node="6EY0p2zs5$X" resolve="right" />
-                          <node concept="1nq8_$" id="6EY0p2zuiw$" role="nsMwV">
-                            <node concept="a7P8L" id="6EY0p2zuiwy" role="1nq8_t">
-                              <ref role="a7OzE" node="6EY0p2zuivA" resolve="Right" />
+                        <node concept="nsMwS" id="6N2bvv_fHPq" role="ns1xD">
+                          <ref role="nsMwP" node="6N2bvv_fHBX" resolve="parameter" />
+                          <node concept="1nq8_$" id="6N2bvv_fHRN" role="nsMwV">
+                            <node concept="a7P8L" id="6N2bvv_fHRL" role="1nq8_t">
+                              <ref role="a7OzE" node="6N2bvv_fHPZ" resolve="Params" />
                             </node>
                           </node>
                         </node>
@@ -10867,40 +10579,146 @@
                 <node concept="aZer4" id="6EY0p2zuivY" role="3XD1gS">
                   <property role="TrG5h" value="IntT" />
                 </node>
-                <node concept="aZer4" id="6EY0p2zuivz" role="3XD1gS">
-                  <property role="TrG5h" value="Left" />
-                </node>
-                <node concept="aZer4" id="6EY0p2zuivA" role="3XD1gS">
-                  <property role="TrG5h" value="Right" />
+                <node concept="aZer4" id="6N2bvv_fHPZ" role="3XD1gS">
+                  <property role="TrG5h" value="Params" />
                 </node>
               </node>
             </node>
             <node concept="3Aq9E8" id="6EY0p2zuiwB" role="1nLNMd">
               <node concept="3I6sU6" id="6EY0p2zuiwC" role="3Ip0Jz">
-                <node concept="3I6s7M" id="6EY0p2zuiwG" role="3I6sU7">
-                  <node concept="3Aqt3T" id="6EY0p2zuiwF" role="3I6s78">
-                    <ref role="3AqCNq" node="3Qp4N06bUPu" resolve="convertsTo" />
-                    <node concept="a7P8L" id="6EY0p2zuiwL" role="3AunhB">
+                <node concept="3I6s7M" id="6N2bvv_fJrl" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_fJrj" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_fIDd" resolve="convertsToAll" />
+                    <node concept="a7P8L" id="6N2bvv_fJs0" role="3AunhB">
                       <ref role="a7OzE" node="6EY0p2zuivw" resolve="T" />
                     </node>
-                    <node concept="a7P8L" id="6EY0p2zuiwR" role="3AunhB">
-                      <ref role="a7OzE" node="6EY0p2zuivz" resolve="Left" />
+                    <node concept="a7P8L" id="2rIdnPwq7ME" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_fHPZ" resolve="Params" />
                     </node>
                   </node>
                 </node>
-                <node concept="3I6s7M" id="6EY0p2zuix9" role="3I6sU7">
-                  <node concept="3Aqt3T" id="6EY0p2zuix7" role="3I6s78">
-                    <ref role="3AqCNq" node="3Qp4N06bUPu" resolve="convertsTo" />
-                    <node concept="a7P8L" id="6EY0p2zuixi" role="3AunhB">
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="6N2bvv_fIxX" role="3cqZAp" />
+        <node concept="1nLNNL" id="6N2bvv_fI_h" role="3cqZAp">
+          <node concept="1nLNMm" id="6N2bvv_fI_j" role="1nLNNK">
+            <node concept="3Aq93q" id="6N2bvv_fIAp" role="1nLNMb">
+              <node concept="3I6sU6" id="6N2bvv_fIAq" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_fIAT" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_fIT2" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_fIDd" resolve="convertsToAll" />
+                    <node concept="a7P8L" id="6N2bvv_fITX" role="3AunhB">
                       <ref role="a7OzE" node="6EY0p2zuivw" resolve="T" />
                     </node>
-                    <node concept="a7P8L" id="6EY0p2zuixo" role="3AunhB">
-                      <ref role="a7OzE" node="6EY0p2zuivA" resolve="Right" />
+                    <node concept="1HFMs5" id="6N2bvv_fIWL" role="3AunhB">
+                      <node concept="a7P8L" id="6N2bvv_fIWG" role="1uarlU">
+                        <ref role="a7OzE" node="6N2bvv_fIVo" resolve="List" />
+                      </node>
+                      <node concept="Hz6ka" id="2rIdnPwoB2J" role="1uarlW">
+                        <node concept="KCUsM" id="2rIdnPwoB4r" role="Hz6kd" />
+                      </node>
                     </node>
                   </node>
                 </node>
               </node>
             </node>
+            <node concept="0eUR_" id="6N2bvv_fIUU" role="0UC6o">
+              <node concept="3NuqgR" id="6N2bvv_fIVn" role="0eVf_">
+                <node concept="aZer4" id="6N2bvv_fIVo" role="3XD1gS">
+                  <property role="TrG5h" value="List" />
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="6N2bvv_fJ7n" role="1nLNMd">
+              <node concept="3I6sU6" id="6N2bvv_fJ7o" role="3Ip0Jz" />
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="6N2bvv_fJyn" role="3cqZAp" />
+        <node concept="1nLNNL" id="6N2bvv_fJv_" role="3cqZAp">
+          <node concept="1nLNMm" id="6N2bvv_fJvA" role="1nLNNK">
+            <node concept="3Aq93q" id="6N2bvv_fJvB" role="1nLNMb">
+              <node concept="3I6sU6" id="6N2bvv_fJvC" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_fJvD" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_fJvE" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_fIDd" resolve="convertsToAll" />
+                    <node concept="a7P8L" id="6N2bvv_fJvF" role="3AunhB">
+                      <ref role="a7OzE" node="6EY0p2zuivw" resolve="T" />
+                    </node>
+                    <node concept="1HFMs5" id="6N2bvv_fJvG" role="3AunhB">
+                      <node concept="a7P8L" id="6N2bvv_fJIg" role="1uarlU">
+                        <ref role="a7OzE" node="6N2bvv_fIVo" resolve="List" />
+                      </node>
+                      <node concept="Hz6ka" id="2rIdnPwoBcv" role="1uarlW">
+                        <node concept="KCUsM" id="2rIdnPwoBeb" role="Hz6kd">
+                          <node concept="1oi5UN" id="2rIdnPwoBhs" role="KCVpo">
+                            <node concept="22Ky0T" id="2rIdnPwoBj5" role="lGtFl">
+                              <node concept="1nq8_$" id="2rIdnPwoBkI" role="22Ky0K">
+                                <node concept="a7P8L" id="2rIdnPwoBkH" role="1nq8_t">
+                                  <ref role="a7OzE" node="6N2bvv_fIZ8" resolve="Head" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                          <node concept="KCUsM" id="2rIdnPwoBBu" role="KCVpo">
+                            <node concept="22Ky0T" id="2rIdnPwoBDb" role="lGtFl">
+                              <node concept="1nq8_$" id="2rIdnPwoBEO" role="22Ky0K">
+                                <node concept="a7P8L" id="2rIdnPwoBEN" role="1nq8_t">
+                                  <ref role="a7OzE" node="6N2bvv_fJ01" resolve="Tail" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="6N2bvv_fJvT" role="1nLNMd">
+              <node concept="3I6sU6" id="6N2bvv_fJvU" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_fJvV" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_fJvW" role="3I6s78">
+                    <ref role="3AqCNq" node="3Qp4N06bUPu" resolve="convertsTo" />
+                    <node concept="a7P8L" id="6N2bvv_fJvX" role="3AunhB">
+                      <ref role="a7OzE" node="6EY0p2zuivw" resolve="T" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_fJHI" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_fIZ8" resolve="Head" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="3I6s7M" id="6N2bvv_fJw8" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_fJw9" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_fIDd" resolve="convertsToAll" />
+                    <node concept="a7P8L" id="6N2bvv_fJwa" role="3AunhB">
+                      <ref role="a7OzE" node="6EY0p2zuivw" resolve="T" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_fJH$" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_fJ01" resolve="Tail" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="0eUR_" id="6N2bvv_jmLH" role="0UC6o">
+              <node concept="3NuqgR" id="6N2bvv_jmMa" role="0eVf_">
+                <node concept="aZer4" id="6N2bvv_fIZ8" role="3XD1gS">
+                  <property role="TrG5h" value="Head" />
+                </node>
+              </node>
+              <node concept="3NuqgR" id="6N2bvv_jmNa" role="0eVf_">
+                <node concept="aZer4" id="6N2bvv_fJ01" role="3XD1gS">
+                  <property role="TrG5h" value="Tail" />
+                </node>
+                <node concept="3uibUv" id="6N2bvv_jnb3" role="3vLBG7">
+                  <ref role="3uigEE" to="6exd:3OPtF03lco4" resolve="ListNode" />
+                </node>
+              </node>
+            </node>
           </node>
         </node>
       </node>
@@ -10908,87 +10726,210 @@
     <node concept="1nLNMY" id="2QSgdliviSV" role="1nK1Vg">
       <property role="TrG5h" value="converts_intersectionType_to_any" />
       <node concept="3clFbS" id="2QSgdliviSW" role="1nLNMH">
-        <node concept="1nLNNL" id="2QSgdliviSX" role="3cqZAp">
-          <node concept="1nLNMm" id="2QSgdliviSY" role="1nLNNK">
-            <node concept="3Aq93q" id="2QSgdliviSZ" role="1nLNMb">
+        <node concept="1nLNNL" id="2rIdnPw3zdt" role="3cqZAp">
+          <node concept="1nLNMm" id="2rIdnPw3zdu" role="1nLNNK">
+            <node concept="3Aq93q" id="2rIdnPw3zdv" role="1nLNMb">
               <property role="3ArMco" value="false" />
-              <node concept="3I6sU6" id="2QSgdliviT0" role="3Ip0Jz">
-                <node concept="3I6s7M" id="2QSgdliviT1" role="3I6sU7">
-                  <node concept="3Aqt3T" id="2QSgdliviT2" role="3I6s78">
+              <node concept="3I6sU6" id="2rIdnPw3zdw" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPw3zdx" role="3I6sU7">
+                  <node concept="3Aqt3T" id="2rIdnPw3zdy" role="3I6s78">
                     <ref role="3AqCNq" node="3Qp4N06bUPu" resolve="convertsTo" />
-                    <node concept="a7P8L" id="2QSgdliviT3" role="3AunhB">
-                      <ref role="a7OzE" node="2QSgdliviTf" resolve="T" />
-                    </node>
-                    <node concept="1HFMs5" id="2QSgdliviT4" role="3AunhB">
-                      <node concept="a7P8L" id="2QSgdliviT5" role="1uarlU">
-                        <ref role="a7OzE" node="2QSgdliviTg" resolve="IntT" />
+                    <node concept="1HFMs5" id="2rIdnPw3zd$" role="3AunhB">
+                      <node concept="a7P8L" id="2rIdnPw3zd_" role="1uarlU">
+                        <ref role="a7OzE" node="2rIdnPw3zdH" resolve="IntT" />
                       </node>
-                      <node concept="ns1u0" id="2QSgdliviT6" role="1uarlW">
+                      <node concept="ns1u0" id="2rIdnPw3zdA" role="1uarlW">
                         <ref role="ns1xF" node="6EY0p2zs5$T" resolve="intersectionType" />
-                        <node concept="nsMwS" id="2QSgdliviT7" role="ns1xD">
-                          <ref role="nsMwP" node="6EY0p2zs5$W" resolve="left" />
-                          <node concept="1nq8_$" id="2QSgdliviT8" role="nsMwV">
-                            <node concept="a7P8L" id="2QSgdliviT9" role="1nq8_t">
-                              <ref role="a7OzE" node="2QSgdliviTh" resolve="Left" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="nsMwS" id="2QSgdliviTa" role="ns1xD">
-                          <ref role="nsMwP" node="6EY0p2zs5$X" resolve="right" />
-                          <node concept="1nq8_$" id="2QSgdliviTb" role="nsMwV">
-                            <node concept="a7P8L" id="2QSgdliviTc" role="1nq8_t">
-                              <ref role="a7OzE" node="2QSgdliviTi" resolve="Right" />
+                        <node concept="nsMwS" id="2rIdnPw3zdB" role="ns1xD">
+                          <ref role="nsMwP" node="6N2bvv_fHBX" resolve="parameter" />
+                          <node concept="1nq8_$" id="2rIdnPw3zdC" role="nsMwV">
+                            <node concept="a7P8L" id="2rIdnPw3zdD" role="1nq8_t">
+                              <ref role="a7OzE" node="2rIdnPw3zdI" resolve="Params" />
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
+                    <node concept="a7P8L" id="2rIdnPw3zdz" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPw3zdG" resolve="T" />
+                    </node>
                   </node>
                 </node>
               </node>
             </node>
-            <node concept="0eUR_" id="2QSgdliviTd" role="0UC6o">
-              <node concept="3NuqgR" id="2QSgdliviTe" role="0eVf_">
-                <node concept="aZer4" id="2QSgdliviTf" role="3XD1gS">
+            <node concept="0eUR_" id="2rIdnPw3zdE" role="0UC6o">
+              <node concept="3NuqgR" id="2rIdnPw3zdF" role="0eVf_">
+                <node concept="aZer4" id="2rIdnPw3zdG" role="3XD1gS">
                   <property role="TrG5h" value="T" />
                 </node>
-                <node concept="aZer4" id="2QSgdliviTg" role="3XD1gS">
+                <node concept="aZer4" id="2rIdnPw3zdH" role="3XD1gS">
                   <property role="TrG5h" value="IntT" />
                 </node>
-                <node concept="aZer4" id="2QSgdliviTh" role="3XD1gS">
-                  <property role="TrG5h" value="Left" />
-                </node>
-                <node concept="aZer4" id="2QSgdliviTi" role="3XD1gS">
-                  <property role="TrG5h" value="Right" />
+                <node concept="aZer4" id="2rIdnPw3zdI" role="3XD1gS">
+                  <property role="TrG5h" value="Params" />
                 </node>
               </node>
             </node>
-            <node concept="3Aq9E8" id="2QSgdliviTj" role="1nLNMd">
-              <node concept="3I6sU6" id="2QSgdliviTk" role="3Ip0Jz">
-                <node concept="3I6s7M" id="2QSgdliviTl" role="3I6sU7">
-                  <node concept="3Aqt3T" id="2QSgdliviTm" role="3I6s78">
-                    <ref role="3AqCNq" node="3Qp4N06bUPu" resolve="convertsTo" />
-                    <node concept="a7P8L" id="2QSgdliviTn" role="3AunhB">
-                      <ref role="a7OzE" node="2QSgdliviTf" resolve="T" />
+            <node concept="3Aq9E8" id="2rIdnPw3zdJ" role="1nLNMd">
+              <node concept="3I6sU6" id="2rIdnPw3zdK" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPw3zdL" role="3I6sU7">
+                  <node concept="3Aqt3T" id="2rIdnPw3zdM" role="3I6s78">
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+                    <node concept="a7P8L" id="2rIdnPw3zdO" role="3AunhB">
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                     </node>
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-                      <ref role="a7OzE" node="2QSgdliviTh" resolve="Left" />
+                    <node concept="a7P8L" id="2rIdnPw3zdN" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPw3zdG" resolve="T" />
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-                    <node concept="a7P8L" id="2QSgdliviTr" role="3AunhB">
-                      <ref role="a7OzE" node="2QSgdliviTf" resolve="T" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="2rIdnPw3zdP" role="3cqZAp" />
+        <node concept="1nLNNL" id="2rIdnPw3zdQ" role="3cqZAp">
+          <node concept="1nLNMm" id="2rIdnPw3zdR" role="1nLNNK">
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+              <node concept="3I6sU6" id="2rIdnPw3zdT" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPw3zdU" role="3I6sU7">
+                  <node concept="3Aqt3T" id="2rIdnPw3zdV" role="3I6s78">
+                    <ref role="3AqCNq" node="2rIdnPw236I" resolve="convertsOneTo" />
+                    <node concept="1HFMs5" id="2rIdnPw3zdX" role="3AunhB">
+                      <node concept="a7P8L" id="2rIdnPw3zdY" role="1uarlU">
+                        <ref role="a7OzE" node="2rIdnPw3ze2" resolve="List" />
+                      </node>
+                      <node concept="HAVWr" id="2rIdnPw3zdZ" role="1uarlW" />
                     </node>
-                    <node concept="a7P8L" id="2QSgdliviTs" role="3AunhB">
-                      <ref role="a7OzE" node="2QSgdliviTi" resolve="Right" />
+                    <node concept="a7P8L" id="2rIdnPw3zdW" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPw3zdG" resolve="T" />
                     </node>
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+              <node concept="3NuqgR" id="2rIdnPw3ze1" role="0eVf_">
+                <node concept="aZer4" id="2rIdnPw3ze2" role="3XD1gS">
+                  <property role="TrG5h" value="List" />
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="2rIdnPw3ze3" role="1nLNMd">
+              <node concept="3I6sU6" id="2rIdnPw3ze4" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPw3zAz" role="3I6sU7">
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+                    <node concept="3clFbT" id="2rIdnPw3zBs" role="3wWo3s" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="2rIdnPw3ze5" role="3cqZAp" />
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+                <node concept="3I6s7M" id="2rIdnPw3zea" role="3I6sU7">
+                  <node concept="3Aqt3T" id="2rIdnPw3zeb" role="3I6s78">
+                    <ref role="3AqCNq" node="2rIdnPw236I" resolve="convertsOneTo" />
+                    <node concept="1HFMs5" id="2rIdnPw3zed" role="3AunhB">
+                      <node concept="a7P8L" id="2rIdnPw3zee" role="1uarlU">
+                        <ref role="a7OzE" node="2rIdnPw3ze2" resolve="List" />
+                      </node>
+                      <node concept="HAVWr" id="2rIdnPw3zef" role="1uarlW">
+                        <node concept="1oi5UN" id="2rIdnPw3zeg" role="HAVW7">
+                          <node concept="22Ky0T" id="2rIdnPw3zeh" role="lGtFl">
+                            <node concept="1nq8_$" id="2rIdnPw3zei" role="22Ky0K">
+                              <node concept="a7P8L" id="2rIdnPw3zej" role="1nq8_t">
+                                <ref role="a7OzE" node="2rIdnPw3zeE" resolve="Head" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="2IllgU" id="2rIdnPw3zek" role="HAVW7" />
+                      </node>
+                    </node>
+                    <node concept="a7P8L" id="2rIdnPw3zec" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPw3zdG" resolve="T" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="2rIdnPw3zel" role="1nLNMd">
+              <node concept="3I6sU6" id="2rIdnPw3zem" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPw3zen" role="3I6sU7">
+                  <node concept="3Aqt3T" id="2rIdnPw3zeo" role="3I6s78">
+                    <ref role="3AqCNq" node="3Qp4N06bUPu" resolve="convertsTo" />
+                    <node concept="a7P8L" id="2rIdnPw3zeq" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPw3zeE" resolve="Head" />
+                    </node>
+                    <node concept="a7P8L" id="2rIdnPw3zep" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPw3zdG" resolve="T" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="2rIdnPw3zxE" role="1nLNMd">
+              <node concept="3I6sU6" id="2rIdnPw3zxF" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPw3zer" role="3I6sU7">
+                  <node concept="3A8Hvi" id="2rIdnPw3zes" role="3I6s78">
+                    <node concept="a7P8L" id="2rIdnPw3zet" role="3A8wtg">
+                      <ref role="a7OzE" node="2rIdnPw3ze2" resolve="List" />
+                    </node>
+                    <node concept="HAVWr" id="2rIdnPw3zeu" role="3A8w4Q">
+                      <node concept="2IllgU" id="2rIdnPw3zev" role="HAVW7" />
+                      <node concept="1oi5UN" id="2rIdnPw3zew" role="HAVW7">
+                        <node concept="22Ky0T" id="2rIdnPw3zex" role="lGtFl">
+                          <node concept="1nq8_$" id="2rIdnPw3zey" role="22Ky0K">
+                            <node concept="a7P8L" id="2rIdnPw3zez" role="1nq8_t">
+                              <ref role="a7OzE" node="2rIdnPw3zeG" resolve="Tail" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="3I6s7M" id="2rIdnPw3ze$" role="3I6sU7">
+                  <node concept="3Aqt3T" id="2rIdnPw3ze_" role="3I6s78">
+                    <ref role="3AqCNq" node="2rIdnPw236I" resolve="convertsOneTo" />
+                    <node concept="HAVWr" id="2rIdnPw89n_" role="3AunhB">
+                      <node concept="1oi5UN" id="2rIdnPw89r6" role="HAVW7">
+                        <node concept="22Ky0T" id="2rIdnPw89rY" role="lGtFl">
+                          <node concept="1nq8_$" id="2rIdnPw89sR" role="22Ky0K">
+                            <node concept="a7P8L" id="2rIdnPw89sQ" role="1nq8_t">
+                              <ref role="a7OzE" node="2rIdnPw3zeG" resolve="Tail" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="a7P8L" id="2rIdnPw3zeA" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPw3zdG" resolve="T" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="0eUR_" id="2rIdnPw3zeC" role="0UC6o">
+              <node concept="3NuqgR" id="2rIdnPw3zeD" role="0eVf_">
+                <node concept="aZer4" id="2rIdnPw3zeE" role="3XD1gS">
+                  <property role="TrG5h" value="Head" />
+                </node>
+              </node>
+              <node concept="3NuqgR" id="2rIdnPw3zeF" role="0eVf_">
+                <node concept="aZer4" id="2rIdnPw3zeG" role="3XD1gS">
+                  <property role="TrG5h" value="Tail" />
+                </node>
+                <node concept="3uibUv" id="2rIdnPw3zeH" role="3vLBG7">
+                  <ref role="3uigEE" to="6exd:3OPtF03lco4" resolve="ListNode" />
+                </node>
+              </node>
+            </node>
           </node>
         </node>
       </node>
@@ -11150,6 +11091,20 @@
       <node concept="3clFbS" id="12QmIo_7siH" role="1nLNMH">
         <node concept="1nLNNL" id="12QmIo_7siI" role="3cqZAp">
           <node concept="1nLNMm" id="12QmIo_7siJ" role="1nLNNK">
+            <node concept="3Aq9E8" id="6N2bvv_crki" role="1nLNMd">
+              <node concept="3I6sU6" id="6N2bvv_crkj" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_crkO" role="3I6sU7">
+                  <node concept="3A8Hvi" id="6N2bvv_crkL" role="3I6s78">
+                    <node concept="a7P8L" id="6N2bvv_crlk" role="3A8wtg">
+                      <ref role="a7OzE" node="2CsZ2XT9Pa" resolve="S" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_crlM" role="3A8w4Q">
+                      <ref role="a7OzE" node="2CsZ2XT9Pj" resolve="T" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
             <node concept="0eUR_" id="7lt0LtPBjV0" role="0UC6o">
               <node concept="3NuqgR" id="2CsZ2XT9P9" role="0eVf_">
                 <node concept="aZer4" id="2CsZ2XT9Pa" role="3XD1gS">
@@ -11194,20 +11149,6 @@
                 </node>
               </node>
             </node>
-            <node concept="3Aq9E8" id="7xE5ZvRZIOf" role="1nLNMd">
-              <node concept="3I6sU6" id="4nIWweBB_cd" role="3Ip0Jz">
-                <node concept="3I6s7M" id="4nIWweBB_ce" role="3I6sU7">
-                  <node concept="3A8Hvi" id="7xE5ZvRZLkj" role="3I6s78">
-                    <node concept="a7P8L" id="5JTOzCQSkFl" role="3A8w4Q">
-                      <ref role="a7OzE" node="2CsZ2XT9Pj" resolve="T" />
-                    </node>
-                    <node concept="a7P8L" id="5JTOzCQSkGH" role="3A8wtg">
-                      <ref role="a7OzE" node="2CsZ2XT9Pa" resolve="S" />
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
           </node>
         </node>
       </node>
@@ -11263,12 +11204,13 @@
             </node>
             <node concept="3Aq9E8" id="5NuEpF1trxX" role="1nLNMd">
               <node concept="3I6sU6" id="4nIWweBB_dD" role="3Ip0Jz">
-                <node concept="3I6s7M" id="2BbfRGCiYBh" role="3I6sU7">
-                  <node concept="3A8Hvi" id="2BbfRGCiYBe" role="3I6s78">
-                    <node concept="a7P8L" id="2BbfRGCiYBm" role="3A8wtg">
+                <node concept="3I6s7M" id="6N2bvv_5WHz" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_5WHy" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_9b_6" resolve="hasUpperTarget" />
+                    <node concept="a7P8L" id="6N2bvv_5WI3" role="3AunhB">
                       <ref role="a7OzE" node="2CsZ2XTa5M" resolve="S" />
                     </node>
-                    <node concept="a7P8L" id="2BbfRGCiYBr" role="3A8w4Q">
+                    <node concept="a7P8L" id="6N2bvv_5WIZ" role="3AunhB">
                       <ref role="a7OzE" node="2CsZ2XTa5V" resolve="T" />
                     </node>
                   </node>
@@ -11330,78 +11272,14 @@
             </node>
             <node concept="3Aq9E8" id="2QSgdljaKJq" role="1nLNMd">
               <node concept="3I6sU6" id="2QSgdljaKJr" role="3Ip0Jz">
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-                  <node concept="3A8Hvi" id="2QSgdljaKJu" role="3I6s78">
-                    <node concept="a7P8L" id="2QSgdljaKJA" role="3A8wtg">
-                      <ref role="a7OzE" node="2CsZ2XTamq" resolve="S" />
-                    </node>
-                    <node concept="a7P8L" id="2QSgdljaKJD" role="3A8w4Q">
+                <node concept="3I6s7M" id="6N2bvv_5WKl" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_5WKk" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_crdr" resolve="hasLowerTarget" />
+                    <node concept="a7P8L" id="6N2bvv_5WLj" role="3AunhB">
                       <ref role="a7OzE" node="2CsZ2XTamz" resolve="T" />
                     </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-        </node>
-      </node>
-    </node>
-    <node concept="1nLNMY" id="12QmIo_7siS" role="1nK1Vg">
-      <property role="TrG5h" value="converts_var_fail" />
-      <node concept="3clFbS" id="12QmIo_7siT" role="1nLNMH">
-        <node concept="1nLNNL" id="12QmIo_7siU" role="3cqZAp">
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-              <node concept="3NuqgR" id="2CsZ2XTdvA" role="0eVf_">
-                <node concept="aZer4" id="2CsZ2XTdvB" role="3XD1gS">
-                  <property role="TrG5h" value="S" />
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-                <node concept="aZer4" id="2CsZ2XTdvK" role="3XD1gS">
-                  <property role="TrG5h" value="T" />
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-                    <node concept="3clFbT" id="6EY0p2vQPwD" role="3wWo3s">
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-            <node concept="3Aq9_M" id="6EY0p2vQPwl" role="1nLNMa">
-              <node concept="3I6sU6" id="6EY0p2vQPwm" role="3Ip0Jz">
-                <node concept="3I6s7M" id="6EY0p2vQPwq" role="3I6sU7">
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-                    <node concept="a7P8L" id="6EY0p2vQPwt" role="2aLmnP">
-                      <ref role="a7OzE" node="2CsZ2XTdvK" resolve="T" />
+                    <node concept="a7P8L" id="6N2bvv_5WKN" role="3AunhB">
+                      <ref role="a7OzE" node="2CsZ2XTamq" resolve="S" />
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@@ -11894,10 +11772,10 @@
       <property role="TrG5h" value="promote" />
       <property role="3AqDzJ" value="2" />
       <node concept="1zAUYm" id="1_2bK$p16I3" role="1zAUyy">
-        <property role="TrG5h" value="Subtype" />
+        <property role="TrG5h" value="subtype" />
       </node>
       <node concept="1zAUYm" id="1_2bK$p16I5" role="1zAUyy">
-        <property role="TrG5h" value="Supertype" />
+        <property role="TrG5h" value="supertype" />
       </node>
       <node concept="1zAsnw" id="1_2bK$p16I8" role="lGtFl">
         <node concept="3SKdUq" id="1_2bK$p16I9" role="27qylF">
@@ -11909,10 +11787,10 @@
       <property role="TrG5h" value="promoteUnchecked" />
       <property role="3AqDzJ" value="2" />
       <node concept="1zAUYm" id="6EY0p2x_ytR" role="1zAUyy">
-        <property role="TrG5h" value="Subtype" />
+        <property role="TrG5h" value="subtype" />
       </node>
       <node concept="1zAUYm" id="6EY0p2x_ytS" role="1zAUyy">
-        <property role="TrG5h" value="Supertype" />
+        <property role="TrG5h" value="supertype" />
       </node>
       <node concept="1zAsnw" id="6EY0p2x_ytT" role="lGtFl">
         <node concept="3SKdUq" id="6EY0p2x_ytU" role="27qylF">
@@ -11924,13 +11802,13 @@
       <property role="TrG5h" value="dpromote" />
       <property role="3AqDzJ" value="3" />
       <node concept="1zAUYm" id="WauyOOvQDL" role="1zAUyy">
-        <property role="TrG5h" value="Subtype" />
+        <property role="TrG5h" value="subtype" />
       </node>
       <node concept="1zAUYm" id="WauyOOvQDN" role="1zAUyy">
-        <property role="TrG5h" value="Supertype" />
+        <property role="TrG5h" value="supertype" />
       </node>
       <node concept="1zAUYm" id="WauyOOvQDQ" role="1zAUyy">
-        <property role="TrG5h" value="SubtypePath" />
+        <property role="TrG5h" value="subclassPaths" />
       </node>
       <node concept="1zAsnw" id="WauyOOvQDU" role="lGtFl">
         <node concept="3SKdUq" id="WauyOOvQDV" role="27qylF">
@@ -11939,30 +11817,39 @@
       </node>
     </node>
     <node concept="1nLNMY" id="6EY0p2x_yub" role="1nK1Vg">
-      <property role="TrG5h" value="promoteUnchecked" />
+      <property role="TrG5h" value="promoteUnchecked_raw" />
       <node concept="3clFbS" id="6EY0p2x_yuc" role="1nLNMH">
         <node concept="1nLNNL" id="6EY0p2x_yud" role="3cqZAp">
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                 <node concept="aZer4" id="6EY0p2x_yuh" role="3XD1gS">
-                  <property role="TrG5h" value="Subtype" />
+                  <property role="TrG5h" value="S" />
                 </node>
                 <node concept="aZer4" id="6EY0p2x_yui" role="3XD1gS">
-                  <property role="TrG5h" value="Supertype" />
+                  <property role="TrG5h" value="T" />
                 </node>
               </node>
               <node concept="3NuqgR" id="6EY0p2x_yuj" role="0eVf_">
                 <node concept="aZer4" id="6EY0p2x_yuk" role="3XD1gS">
-                  <property role="TrG5h" value="FullSubtypingPaths" />
+                  <property role="TrG5h" value="AllSubclassPaths" />
                 </node>
                 <node concept="aZer4" id="6EY0p2x_yul" role="3XD1gS">
-                  <property role="TrG5h" value="SubtypingPath" />
+                  <property role="TrG5h" value="SubclassPath" />
                 </node>
-                <node concept="aZer4" id="6EY0p2x_yum" role="3XD1gS">
+                <node concept="aZer4" id="2rIdnPvGQxl" role="3XD1gS">
                   <property role="TrG5h" value="StartFrom" />
                 </node>
               </node>
+              <node concept="3NuqgR" id="2rIdnPvxWIT" role="0eVf_">
+                <node concept="aZer4" id="2rIdnPvwr5L" role="3XD1gS">
+                  <property role="TrG5h" value="SCls" />
+                </node>
+                <node concept="aZer4" id="2rIdnPvwr1q" role="3XD1gS">
+                  <property role="TrG5h" value="TCls" />
+                </node>
+                <node concept="2sp9CU" id="2rIdnPvxWJP" role="3vLBG7" />
+              </node>
             </node>
             <node concept="3Aq93q" id="6EY0p2x_yun" role="1nLNMb">
               <property role="3ArMco" value="false" />
@@ -11973,6 +11860,14 @@
                     <node concept="1HFMs5" id="6EY0p2x_yur" role="3AunhB">
                       <node concept="ns1u0" id="6EY0p2x_yus" role="1uarlW">
                         <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
+                        <node concept="nsMwS" id="2rIdnPvzzff" role="ns1xD">
+                          <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
+                          <node concept="1nq8_$" id="2rIdnPvzzgR" role="nsMwV">
+                            <node concept="a7P8L" id="2rIdnPvzzgP" role="1nq8_t">
+                              <ref role="a7OzE" node="2rIdnPvwr5L" resolve="SCls" />
+                            </node>
+                          </node>
+                        </node>
                         <node concept="nsMwS" id="6EY0p2x_yBz" role="ns1xD">
                           <ref role="nsMwP" node="JOGAOsVt2d" resolve="kind" />
                           <node concept="Xl_RD" id="6EY0p2x_yBB" role="nsMwV">
@@ -11981,15 +11876,23 @@
                         </node>
                       </node>
                       <node concept="a7P8L" id="6EY0p2x_yut" role="1uarlU">
-                        <ref role="a7OzE" node="6EY0p2x_yuh" resolve="Subtype" />
+                        <ref role="a7OzE" node="6EY0p2x_yuh" resolve="S" />
                       </node>
                     </node>
                     <node concept="1HFMs5" id="6EY0p2x_yuu" role="3AunhB">
                       <node concept="ns1u0" id="6EY0p2x_yuv" role="1uarlW">
                         <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
+                        <node concept="nsMwS" id="2rIdnPvwr1m" role="ns1xD">
+                          <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
+                          <node concept="1nq8_$" id="2rIdnPvwr1w" role="nsMwV">
+                            <node concept="a7P8L" id="2rIdnPvwr1u" role="1nq8_t">
+                              <ref role="a7OzE" node="2rIdnPvwr1q" resolve="TCls" />
+                            </node>
+                          </node>
+                        </node>
                       </node>
                       <node concept="a7P8L" id="6EY0p2x_yuw" role="1uarlU">
-                        <ref role="a7OzE" node="6EY0p2x_yui" resolve="Supertype" />
+                        <ref role="a7OzE" node="6EY0p2x_yui" resolve="T" />
                       </node>
                     </node>
                   </node>
@@ -12007,106 +11910,63 @@
                     </node>
                     <node concept="3Aqczg" id="6EY0p2x_yuJ" role="3cqZAp">
                       <node concept="3Aqt3T" id="6EY0p2x_yuK" role="3Aqpz8">
-                        <ref role="3AqCNq" node="2q0gzCFHojT" resolve="subtypePaths" />
+                        <ref role="3AqCNq" node="2rIdnPuJSDR" resolve="subclassPaths" />
                         <node concept="a7P8L" id="6EY0p2x_yuL" role="3AunhB">
-                          <ref role="a7OzE" node="6EY0p2x_yuk" resolve="FullSubtypingPaths" />
+                          <ref role="a7OzE" node="6EY0p2x_yuk" resolve="AllSubclassPaths" />
                         </node>
-                        <node concept="a7P8L" id="6EY0p2x_yuM" role="3AunhB">
-                          <ref role="a7OzE" node="6EY0p2x_yuh" resolve="Subtype" />
+                        <node concept="a7P8L" id="2rIdnPv_6iA" role="3AunhB">
+                          <ref role="a7OzE" node="6EY0p2x_yuh" resolve="S" />
                         </node>
                       </node>
                     </node>
-                    <node concept="3clFbH" id="6EY0p2x_yuN" role="3cqZAp" />
-                    <node concept="3SKdUt" id="6EY0p2x_yuO" role="3cqZAp">
-                      <node concept="3SKdUq" id="6EY0p2x_yuP" role="3SKWNk">
-                        <property role="3SKdUp" value="capture the supertype into StartFrom dropping the parameters" />
-                      </node>
-                    </node>
-                    <node concept="3X$Joe" id="6EY0p2x_yuQ" role="3cqZAp">
-                      <node concept="2sp9CU" id="7wAOnq6x5JU" role="3vLBG7" />
-                      <node concept="aZer4" id="6EY0p2x_yuS" role="3XD1gS">
-                        <property role="TrG5h" value="Cls" />
-                      </node>
-                    </node>
-                    <node concept="3Aqczg" id="6EY0p2x_yuU" role="3cqZAp">
-                      <node concept="3A8Hvi" id="6EY0p2x_yuV" role="3Aqpz8">
-                        <node concept="a7P8L" id="6EY0p2x_yuW" role="3A8wtg">
-                          <ref role="a7OzE" node="6EY0p2x_yui" resolve="Supertype" />
+                    <node concept="3Aqczg" id="2rIdnPvGQH0" role="3cqZAp">
+                      <node concept="3A8Hvi" id="2rIdnPvGQGU" role="3Aqpz8">
+                        <node concept="a7P8L" id="2rIdnPvGQJ0" role="3A8wtg">
+                          <ref role="a7OzE" node="2rIdnPvGQxl" resolve="StartFrom" />
                         </node>
-                        <node concept="ns1u0" id="6EY0p2x_yuX" role="3A8w4Q">
+                        <node concept="ns1u0" id="2rIdnPvGQKD" role="3A8w4Q">
                           <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
-                          <node concept="nsMwS" id="6EY0p2x_yuY" role="ns1xD">
+                          <node concept="nsMwS" id="2rIdnPvGQMh" role="ns1xD">
                             <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
-                            <node concept="1nq8_$" id="6EY0p2x_yuZ" role="nsMwV">
-                              <node concept="a7P8L" id="6EY0p2x_yv0" role="1nq8_t">
-                                <ref role="a7OzE" node="6EY0p2x_yuS" resolve="Cls" />
-                              </node>
-                            </node>
-                          </node>
-                          <node concept="nsMwS" id="6EY0p2x_yv1" role="ns1xD">
-                            <ref role="nsMwP" node="JOGAOsVt2e" resolve="parameter" />
-                            <node concept="1oi1Uc" id="6EY0p2x_yv2" role="nsMwV">
-                              <node concept="KCUsM" id="6EY0p2x_yv3" role="1oi0x0">
-                                <node concept="2IllgU" id="6EY0p2x_yv4" role="KCVpo" />
+                            <node concept="1nq8_$" id="2rIdnPvGQPz" role="nsMwV">
+                              <node concept="a7P8L" id="2rIdnPvGQPx" role="1nq8_t">
+                                <ref role="a7OzE" node="2rIdnPvwr1q" resolve="TCls" />
                               </node>
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="3Aqczg" id="6EY0p2x_yv5" role="3cqZAp">
-                      <node concept="3A8Hvi" id="6EY0p2x_yv6" role="3Aqpz8">
-                        <node concept="a7P8L" id="6EY0p2x_yv7" role="3A8wtg">
-                          <ref role="a7OzE" node="6EY0p2x_yum" resolve="StartFrom" />
+                    <node concept="3Aqczg" id="2rIdnPtWlk3" role="3cqZAp">
+                      <node concept="3A8Hvi" id="2rIdnPtWljX" role="3Aqpz8">
+                        <node concept="a7P8L" id="2rIdnPtWlkQ" role="3A8wtg">
+                          <ref role="a7OzE" node="6EY0p2x_yul" resolve="SubclassPath" />
                         </node>
-                        <node concept="ns1u0" id="6EY0p2x_yv8" role="3A8w4Q">
-                          <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
-                          <node concept="nsMwS" id="6EY0p2x_yv9" role="ns1xD">
-                            <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
-                            <node concept="1nq8_$" id="6EY0p2x_yva" role="nsMwV">
-                              <node concept="a7P8L" id="6EY0p2x_yvb" role="1nq8_t">
-                                <ref role="a7OzE" node="6EY0p2x_yuS" resolve="Cls" />
+                        <node concept="HKQnh" id="2rIdnPtWlkT" role="3A8w4Q">
+                          <node concept="2YIFZM" id="2rIdnPtWll7" role="HKQng">
+                            <ref role="37wK5l" node="3KV3FXk1fGe" resolve="findPath" />
+                            <ref role="1Pybhc" node="3KV3FXk1fjd" resolve="PathHelper" />
+                            <node concept="1TmgYN" id="2rIdnPtWll9" role="37wK5m">
+                              <node concept="1nq8_$" id="2rIdnPtWllh" role="1Tms7$">
+                                <node concept="a7P8L" id="2rIdnPtWllf" role="1nq8_t">
+                                  <ref role="a7OzE" node="6EY0p2x_yuk" resolve="AllSubclassPaths" />
+                                </node>
                               </node>
                             </node>
-                          </node>
-                          <node concept="nsMwS" id="6EY0p2x_yvc" role="ns1xD">
-                            <ref role="nsMwP" node="JOGAOsVt2e" resolve="parameter" />
-                            <node concept="1oi1Uc" id="6EY0p2x_yvd" role="nsMwV">
-                              <node concept="KCUsM" id="6EY0p2x_yve" role="1oi0x0">
-                                <node concept="2IllgU" id="6EY0p2x_yvf" role="KCVpo" />
+                            <node concept="1TmgYN" id="2rIdnPvGQUA" role="37wK5m">
+                              <node concept="1nq8_$" id="2rIdnPvGQWn" role="1Tms7$">
+                                <node concept="a7P8L" id="2rIdnPvGQWl" role="1nq8_t">
+                                  <ref role="a7OzE" node="2rIdnPvGQxl" resolve="StartFrom" />
+                                </node>
                               </node>
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="3clFbH" id="6EY0p2x_yvg" role="3cqZAp" />
-                    <node concept="3Aqczg" id="6EY0p2x_yvh" role="3cqZAp">
-                      <node concept="3wWvb2" id="6EY0p2x_yvi" role="3Aqpz8">
-                        <node concept="2YIFZM" id="6EY0p2x_yvj" role="3wWo3s">
-                          <ref role="37wK5l" node="3KV3FXk1fGe" resolve="findSubtypingPath" />
-                          <ref role="1Pybhc" node="3KV3FXk1fjd" resolve="SubtypePathSolver" />
-                          <node concept="1nq8_$" id="6EY0p2x_yvk" role="37wK5m">
-                            <node concept="a7P8L" id="6EY0p2x_yvl" role="1nq8_t">
-                              <ref role="a7OzE" node="6EY0p2x_yul" resolve="SubtypingPath" />
-                            </node>
-                          </node>
-                          <node concept="1nq8_$" id="6EY0p2x_yvm" role="37wK5m">
-                            <node concept="a7P8L" id="6EY0p2x_yvn" role="1nq8_t">
-                              <ref role="a7OzE" node="6EY0p2x_yuk" resolve="FullSubtypingPaths" />
-                            </node>
-                          </node>
-                          <node concept="1nq8_$" id="6EY0p2x_yvo" role="37wK5m">
-                            <node concept="a7P8L" id="6EY0p2x_yvp" role="1nq8_t">
-                              <ref role="a7OzE" node="6EY0p2x_yum" resolve="StartFrom" />
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
                     <node concept="3SKdUt" id="6EY0p2x_yD5" role="3cqZAp">
                       <node concept="3SKdUq" id="6EY0p2x_yD7" role="3SKWNk">
-                        <property role="3SKdUp" value="finding the subtyping path constitutes raw type subtyping resolution" />
+                        <property role="3SKdUp" value="finding the path constitutes raw type subtyping resolution" />
                       </node>
                     </node>
                   </node>
@@ -12118,7 +11978,7 @@
       </node>
     </node>
     <node concept="1nLNMY" id="6EY0p2x_ySz" role="1nK1Vg">
-      <property role="TrG5h" value="promoteUnchecked2" />
+      <property role="TrG5h" value="promoteUnchecked_notraw" />
       <node concept="3clFbS" id="6EY0p2x_yS$" role="1nLNMH">
         <node concept="1nLNNL" id="6EY0p2x_yS_" role="3cqZAp">
           <node concept="1nLNMm" id="6EY0p2x_ySA" role="1nLNNK">
@@ -12128,10 +11988,10 @@
                   <node concept="3Aqt3T" id="6EY0p2x_z37" role="3I6s78">
                     <ref role="3AqCNq" node="1_2bK$p16Hl" resolve="promote" />
                     <node concept="a7P8L" id="6EY0p2x_z3d" role="3AunhB">
-                      <ref role="a7OzE" node="6EY0p2x_ySD" resolve="Subtype" />
+                      <ref role="a7OzE" node="6EY0p2x_ySD" resolve="S" />
                     </node>
                     <node concept="a7P8L" id="6EY0p2x_z3j" role="3AunhB">
-                      <ref role="a7OzE" node="6EY0p2x_ySE" resolve="Supertype" />
+                      <ref role="a7OzE" node="6EY0p2x_ySE" resolve="T" />
                     </node>
                   </node>
                 </node>
@@ -12140,21 +12000,10 @@
             <node concept="0eUR_" id="6EY0p2x_ySB" role="0UC6o">
               <node concept="3NuqgR" id="6EY0p2x_ySC" role="0eVf_">
                 <node concept="aZer4" id="6EY0p2x_ySD" role="3XD1gS">
-                  <property role="TrG5h" value="Subtype" />
+                  <property role="TrG5h" value="S" />
                 </node>
                 <node concept="aZer4" id="6EY0p2x_ySE" role="3XD1gS">
-                  <property role="TrG5h" value="Supertype" />
-                </node>
-              </node>
-              <node concept="3NuqgR" id="6EY0p2x_ySF" role="0eVf_">
-                <node concept="aZer4" id="6EY0p2x_ySG" role="3XD1gS">
-                  <property role="TrG5h" value="FullSubtypingPaths" />
-                </node>
-                <node concept="aZer4" id="6EY0p2x_ySH" role="3XD1gS">
-                  <property role="TrG5h" value="SubtypingPath" />
-                </node>
-                <node concept="aZer4" id="6EY0p2x_ySI" role="3XD1gS">
-                  <property role="TrG5h" value="StartFrom" />
+                  <property role="TrG5h" value="T" />
                 </node>
               </node>
             </node>
@@ -12169,7 +12018,7 @@
                         <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
                       </node>
                       <node concept="a7P8L" id="6EY0p2x_ySR" role="1uarlU">
-                        <ref role="a7OzE" node="6EY0p2x_ySD" resolve="Subtype" />
+                        <ref role="a7OzE" node="6EY0p2x_ySD" resolve="S" />
                       </node>
                     </node>
                     <node concept="1HFMs5" id="6EY0p2x_ySS" role="3AunhB">
@@ -12177,7 +12026,7 @@
                         <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
                       </node>
                       <node concept="a7P8L" id="6EY0p2x_ySU" role="1uarlU">
-                        <ref role="a7OzE" node="6EY0p2x_ySE" resolve="Supertype" />
+                        <ref role="a7OzE" node="6EY0p2x_ySE" resolve="T" />
                       </node>
                     </node>
                   </node>
@@ -12196,15 +12045,15 @@
             <node concept="0eUR_" id="7lt0LtPzEq6" role="0UC6o">
               <node concept="3NuqgR" id="1_2bK$p16KA" role="0eVf_">
                 <node concept="aZer4" id="1_2bK$p16KB" role="3XD1gS">
-                  <property role="TrG5h" value="Subtype" />
+                  <property role="TrG5h" value="S" />
                 </node>
                 <node concept="aZer4" id="1_2bK$p16L8" role="3XD1gS">
-                  <property role="TrG5h" value="Supertype" />
+                  <property role="TrG5h" value="T" />
                 </node>
               </node>
               <node concept="3NuqgR" id="WauyOOvJ4C" role="0eVf_">
                 <node concept="aZer4" id="WauyOOvJ8R" role="3XD1gS">
-                  <property role="TrG5h" value="FullSubtypingPaths" />
+                  <property role="TrG5h" value="AllSubclassPaths" />
                 </node>
                 <node concept="aZer4" id="WauyOOvPeG" role="3XD1gS">
                   <property role="TrG5h" value="SubtypingPath" />
@@ -12213,6 +12062,15 @@
                   <property role="TrG5h" value="StartFrom" />
                 </node>
               </node>
+              <node concept="3NuqgR" id="2rIdnPvxWQu" role="0eVf_">
+                <node concept="aZer4" id="2rIdnPvzzk2" role="3XD1gS">
+                  <property role="TrG5h" value="SCls" />
+                </node>
+                <node concept="aZer4" id="2rIdnPvwraX" role="3XD1gS">
+                  <property role="TrG5h" value="TCls" />
+                </node>
+                <node concept="2sp9CU" id="2rIdnPvxWRq" role="3vLBG7" />
+              </node>
             </node>
             <node concept="3Aq93q" id="1_2bK$p16Ky" role="1nLNMb">
               <property role="3ArMco" value="false" />
@@ -12223,17 +12081,33 @@
                     <node concept="1HFMs5" id="1mdVbTSaq3h" role="3AunhB">
                       <node concept="ns1u0" id="JOGAOsVtbl" role="1uarlW">
                         <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
+                        <node concept="nsMwS" id="2rIdnPvzziu" role="ns1xD">
+                          <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
+                          <node concept="1nq8_$" id="2rIdnPvzzmn" role="nsMwV">
+                            <node concept="a7P8L" id="2rIdnPvzzml" role="1nq8_t">
+                              <ref role="a7OzE" node="2rIdnPvzzk2" resolve="SCls" />
+                            </node>
+                          </node>
+                        </node>
                       </node>
                       <node concept="a7P8L" id="4sSe4$pshep" role="1uarlU">
-                        <ref role="a7OzE" node="1_2bK$p16KB" resolve="Subtype" />
+                        <ref role="a7OzE" node="1_2bK$p16KB" resolve="S" />
                       </node>
                     </node>
                     <node concept="1HFMs5" id="1mdVbTSaq3T" role="3AunhB">
                       <node concept="ns1u0" id="JOGAOsVtas" role="1uarlW">
                         <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
+                        <node concept="nsMwS" id="2rIdnPvwraT" role="ns1xD">
+                          <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
+                          <node concept="1nq8_$" id="2rIdnPvwrb9" role="nsMwV">
+                            <node concept="a7P8L" id="2rIdnPvwrb7" role="1nq8_t">
+                              <ref role="a7OzE" node="2rIdnPvwraX" resolve="TCls" />
+                            </node>
+                          </node>
+                        </node>
                       </node>
                       <node concept="a7P8L" id="4sSe4$psheq" role="1uarlU">
-                        <ref role="a7OzE" node="1_2bK$p16L8" resolve="Supertype" />
+                        <ref role="a7OzE" node="1_2bK$p16L8" resolve="T" />
                       </node>
                     </node>
                   </node>
@@ -12245,14 +12119,14 @@
                 <node concept="3I6s7M" id="4nIWweBC_zY" role="3I6sU7">
                   <node concept="2aM9Np" id="1_2bK$p16LQ" role="3I6s78">
                     <node concept="a7P8L" id="1_2bK$p16LU" role="2aLmnP">
-                      <ref role="a7OzE" node="1_2bK$p16KB" resolve="Subtype" />
+                      <ref role="a7OzE" node="1_2bK$p16KB" resolve="S" />
                     </node>
                   </node>
                 </node>
                 <node concept="3I6s7M" id="4nIWweBC_zZ" role="3I6sU7">
                   <node concept="2aM9Np" id="1_2bK$p16M3" role="3I6s78">
                     <node concept="a7P8L" id="1_2bK$p16Mb" role="2aLmnP">
-                      <ref role="a7OzE" node="1_2bK$p16L8" resolve="Supertype" />
+                      <ref role="a7OzE" node="1_2bK$p16L8" resolve="T" />
                     </node>
                   </node>
                 </node>
@@ -12269,112 +12143,68 @@
                     </node>
                     <node concept="3Aqczg" id="WauyOOvJbb" role="3cqZAp">
                       <node concept="3Aqt3T" id="WauyOOvJb7" role="3Aqpz8">
-                        <ref role="3AqCNq" node="2q0gzCFHojT" resolve="subtypePaths" />
+                        <ref role="3AqCNq" node="2rIdnPuJSDR" resolve="subclassPaths" />
                         <node concept="a7P8L" id="WauyOOvJbS" role="3AunhB">
-                          <ref role="a7OzE" node="WauyOOvJ8R" resolve="FullSubtypingPaths" />
+                          <ref role="a7OzE" node="WauyOOvJ8R" resolve="AllSubclassPaths" />
                         </node>
-                        <node concept="a7P8L" id="7nkyKX6Yuxw" role="3AunhB">
-                          <ref role="a7OzE" node="1_2bK$p16KB" resolve="Subtype" />
+                        <node concept="a7P8L" id="2rIdnPv_6jq" role="3AunhB">
+                          <ref role="a7OzE" node="1_2bK$p16KB" resolve="S" />
                         </node>
                       </node>
                     </node>
-                    <node concept="3clFbH" id="4gW0vesPmP9" role="3cqZAp" />
-                    <node concept="3SKdUt" id="4gW0vesPn6Z" role="3cqZAp">
-                      <node concept="3SKdUq" id="4gW0vesPn71" role="3SKWNk">
-                        <property role="3SKdUp" value="capture the supertype into StartFrom dropping the parameters" />
-                      </node>
-                    </node>
-                    <node concept="3X$Joe" id="4gW0vesJrrJ" role="3cqZAp">
-                      <node concept="2sp9CU" id="7wAOnq6x5Me" role="3vLBG7" />
-                      <node concept="aZer4" id="4gW0vesJrDB" role="3XD1gS">
-                        <property role="TrG5h" value="Cls" />
-                      </node>
-                    </node>
-                    <node concept="3Aqczg" id="4gW0vesJrTr" role="3cqZAp">
-                      <node concept="3A8Hvi" id="4gW0vesJrTl" role="3Aqpz8">
-                        <node concept="a7P8L" id="4gW0vesJs7b" role="3A8wtg">
-                          <ref role="a7OzE" node="1_2bK$p16L8" resolve="Supertype" />
-                        </node>
-                        <node concept="ns1u0" id="JOGAOsVtbJ" role="3A8w4Q">
-                          <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
-                          <node concept="nsMwS" id="JOGAOsVtbK" role="ns1xD">
-                            <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
-                            <node concept="1nq8_$" id="49obaclfijO" role="nsMwV">
-                              <node concept="a7P8L" id="4gW0vesJs7C" role="1nq8_t">
-                                <ref role="a7OzE" node="4gW0vesJrDB" resolve="Cls" />
-                              </node>
-                            </node>
-                          </node>
-                          <node concept="nsMwS" id="JOGAOsVtbL" role="ns1xD">
-                            <ref role="nsMwP" node="JOGAOsVt2e" resolve="parameter" />
-                            <node concept="1oi1Uc" id="4gW0vesOf0L" role="nsMwV">
-                              <node concept="KCUsM" id="4gW0vesOf4h" role="1oi0x0">
-                                <node concept="2IllgU" id="4gW0vesOf7I" role="KCVpo" />
-                              </node>
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
-                    <node concept="3Aqczg" id="4gW0vesJsi6" role="3cqZAp">
-                      <node concept="3A8Hvi" id="4gW0vesJsi7" role="3Aqpz8">
-                        <node concept="a7P8L" id="4gW0vesJsyp" role="3A8wtg">
+                    <node concept="3Aqczg" id="2rIdnPvGPVF" role="3cqZAp">
+                      <node concept="3A8Hvi" id="2rIdnPvGPV_" role="3Aqpz8">
+                        <node concept="a7P8L" id="2rIdnPvGPXI" role="3A8wtg">
                           <ref role="a7OzE" node="5_6ImQYcOig" resolve="StartFrom" />
                         </node>
-                        <node concept="ns1u0" id="JOGAOsVtat" role="3A8w4Q">
-                          <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
-                          <node concept="nsMwS" id="JOGAOsVtau" role="ns1xD">
-                            <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
-                            <node concept="1nq8_$" id="49obaclfijG" role="nsMwV">
-                              <node concept="a7P8L" id="4gW0vesJsig" role="1nq8_t">
-                                <ref role="a7OzE" node="4gW0vesJrDB" resolve="Cls" />
-                              </node>
-                            </node>
-                          </node>
-                          <node concept="nsMwS" id="JOGAOsVtav" role="ns1xD">
-                            <ref role="nsMwP" node="JOGAOsVt2e" resolve="parameter" />
-                            <node concept="1oi1Uc" id="4gW0vesOf7O" role="nsMwV">
-                              <node concept="KCUsM" id="4gW0vesOf7P" role="1oi0x0">
-                                <node concept="2IllgU" id="4gW0vesOf7Q" role="KCVpo" />
+                        <node concept="Hz6ka" id="2rIdnPwh4D9" role="3A8w4Q">
+                          <node concept="1oi5XN" id="2rIdnPwh4EP" role="Hz6kd">
+                            <node concept="22Ky0T" id="2rIdnPwh4Gu" role="lGtFl">
+                              <node concept="1nq8_$" id="2rIdnPwh4I7" role="22Ky0K">
+                                <node concept="a7P8L" id="2rIdnPwh4I6" role="1nq8_t">
+                                  <ref role="a7OzE" node="2rIdnPvwraX" resolve="TCls" />
+                                </node>
                               </node>
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="3clFbH" id="4gW0vesJqZb" role="3cqZAp" />
-                    <node concept="3Aqczg" id="WauyOOvP8P" role="3cqZAp">
-                      <node concept="3wWvb2" id="WauyOOvP9N" role="3Aqpz8">
-                        <node concept="2YIFZM" id="20Ay2Vfc3qq" role="3wWo3s">
-                          <ref role="37wK5l" node="3KV3FXk1fGe" resolve="findSubtypingPath" />
-                          <ref role="1Pybhc" node="3KV3FXk1fjd" resolve="SubtypePathSolver" />
-                          <node concept="1nq8_$" id="49obaclfijj" role="37wK5m">
-                            <node concept="a7P8L" id="WauyOOvPgy" role="1nq8_t">
-                              <ref role="a7OzE" node="WauyOOvPeG" resolve="SubtypingPath" />
+                    <node concept="3Aqczg" id="2rIdnPtWlmx" role="3cqZAp">
+                      <node concept="3A8Hvi" id="2rIdnPtWlmr" role="3Aqpz8">
+                        <node concept="a7P8L" id="2rIdnPtWlnn" role="3A8wtg">
+                          <ref role="a7OzE" node="WauyOOvPeG" resolve="SubtypingPath" />
+                        </node>
+                        <node concept="HKQnh" id="2rIdnPtWlnq" role="3A8w4Q">
+                          <node concept="2YIFZM" id="2rIdnPtWlnO" role="HKQng">
+                            <ref role="37wK5l" node="3KV3FXk1fGe" resolve="findPath" />
+                            <ref role="1Pybhc" node="3KV3FXk1fjd" resolve="PathHelper" />
+                            <node concept="1TmgYN" id="2rIdnPtWlnQ" role="37wK5m">
+                              <node concept="1nq8_$" id="2rIdnPtWlnY" role="1Tms7$">
+                                <node concept="a7P8L" id="2rIdnPtWlnW" role="1nq8_t">
+                                  <ref role="a7OzE" node="WauyOOvJ8R" resolve="AllSubclassPaths" />
+                                </node>
+                              </node>
                             </node>
-                          </node>
-                          <node concept="1nq8_$" id="49obaclfijn" role="37wK5m">
-                            <node concept="a7P8L" id="WauyOOvPhB" role="1nq8_t">
-                              <ref role="a7OzE" node="WauyOOvJ8R" resolve="FullSubtypingPaths" />
-                            </node>
-                          </node>
-                          <node concept="1nq8_$" id="49obaclfiiX" role="37wK5m">
-                            <node concept="a7P8L" id="5_6ImQYcOo4" role="1nq8_t">
-                              <ref role="a7OzE" node="5_6ImQYcOig" resolve="StartFrom" />
+                            <node concept="1TmgYN" id="2rIdnPvGQsl" role="37wK5m">
+                              <node concept="1nq8_$" id="2rIdnPvGQu6" role="1Tms7$">
+                                <node concept="a7P8L" id="2rIdnPvGQu4" role="1nq8_t">
+                                  <ref role="a7OzE" node="5_6ImQYcOig" resolve="StartFrom" />
+                                </node>
+                              </node>
                             </node>
                           </node>
                         </node>
                       </node>
                     </node>
-                    <node concept="3clFbH" id="WauyOOvPk8" role="3cqZAp" />
                     <node concept="3Aqczg" id="WauyOOvQEc" role="3cqZAp">
                       <node concept="3Aqt3T" id="WauyOOvQE8" role="3Aqpz8">
                         <ref role="3AqCNq" node="WauyOOvQCY" resolve="dpromote" />
                         <node concept="a7P8L" id="WauyOOvQNi" role="3AunhB">
-                          <ref role="a7OzE" node="1_2bK$p16KB" resolve="Subtype" />
+                          <ref role="a7OzE" node="1_2bK$p16KB" resolve="S" />
                         </node>
                         <node concept="a7P8L" id="WauyOOvQNq" role="3AunhB">
-                          <ref role="a7OzE" node="1_2bK$p16L8" resolve="Supertype" />
+                          <ref role="a7OzE" node="1_2bK$p16L8" resolve="T" />
                         </node>
                         <node concept="a7P8L" id="WauyOOvQN$" role="3AunhB">
                           <ref role="a7OzE" node="WauyOOvPeG" resolve="SubtypingPath" />
@@ -12390,86 +12220,20 @@
       </node>
     </node>
     <node concept="1nLNMY" id="12QmIo_7sj8" role="1nK1Vg">
-      <property role="TrG5h" value="dpromote_reflexive" />
+      <property role="TrG5h" value="dpromote_reflexive_raw" />
       <node concept="3clFbS" id="12QmIo_7sj9" role="1nLNMH">
         <node concept="1nLNNL" id="12QmIo_7sja" role="3cqZAp">
           <node concept="1nLNMm" id="12QmIo_7sjb" role="1nLNNK">
             <node concept="0eUR_" id="7lt0LtPzEuA" role="0UC6o">
               <node concept="3NuqgR" id="5310cdpKr9a" role="0eVf_">
-                <node concept="aZer4" id="5310cdpKr9b" role="3XD1gS">
-                  <property role="TrG5h" value="SCap" />
-                </node>
-                <node concept="aZer4" id="5310cdpKr9c" role="3XD1gS">
-                  <property role="TrG5h" value="SCapParams" />
-                  <node concept="2OqwBi" id="5310cdpKr9e" role="3gj$pD">
-                    <node concept="2OqwBi" id="5310cdpKr9f" role="2Oq$k0">
-                      <node concept="3A2sRY" id="5310cdpKr9g" role="2Oq$k0">
-                        <ref role="3A2yKK" node="5310cdpKraY" resolve="cls" />
-                      </node>
-                      <node concept="3Tsc0h" id="5310cdpKr9h" role="2OqNvi">
-                        <ref role="3TtcxE" to="tpee:g96eVAe" resolve="typeVariableDeclaration" />
-                      </node>
-                    </node>
-                    <node concept="34oBXx" id="5310cdpKr9i" role="2OqNvi" />
-                  </node>
-                </node>
-                <node concept="aZer4" id="5310cdpKr9j" role="3XD1gS">
-                  <property role="TrG5h" value="TCap" />
-                </node>
-                <node concept="aZer4" id="5310cdpKr9k" role="3XD1gS">
-                  <property role="TrG5h" value="TCapParams" />
-                  <node concept="2OqwBi" id="5310cdpKr9m" role="3gj$pD">
-                    <node concept="2OqwBi" id="5310cdpKr9n" role="2Oq$k0">
-                      <node concept="3A2sRY" id="5310cdpKr9o" role="2Oq$k0">
-                        <ref role="3A2yKK" node="5310cdpKraY" resolve="cls" />
-                      </node>
-                      <node concept="3Tsc0h" id="5310cdpKr9p" role="2OqNvi">
-                        <ref role="3TtcxE" to="tpee:g96eVAe" resolve="typeVariableDeclaration" />
-                      </node>
-                    </node>
-                    <node concept="34oBXx" id="5310cdpKr9q" role="2OqNvi" />
-                  </node>
-                </node>
-              </node>
-            </node>
-            <node concept="0eUR_" id="7lt0LtPzEPi" role="0UC6o">
-              <node concept="3NuqgR" id="5310cdpKraD" role="0eVf_">
                 <node concept="aZer4" id="5310cdpKraE" role="3XD1gS">
                   <property role="TrG5h" value="S" />
                 </node>
-                <node concept="aZer4" id="5310cdpKrFX" role="3XD1gS">
-                  <property role="TrG5h" value="SParam" />
-                  <node concept="2OqwBi" id="5310cdpKsc2" role="3gj$pD">
-                    <node concept="2OqwBi" id="5310cdpKsc3" role="2Oq$k0">
-                      <node concept="3A2sRY" id="5310cdpKsc4" role="2Oq$k0">
-                        <ref role="3A2yKK" node="5310cdpKraY" resolve="cls" />
-                      </node>
-                      <node concept="3Tsc0h" id="5310cdpKsc5" role="2OqNvi">
-                        <ref role="3TtcxE" to="tpee:g96eVAe" resolve="typeVariableDeclaration" />
-                      </node>
-                    </node>
-                    <node concept="34oBXx" id="5310cdpKsc6" role="2OqNvi" />
-                  </node>
-                </node>
                 <node concept="aZer4" id="5310cdpKraF" role="3XD1gS">
                   <property role="TrG5h" value="T" />
                 </node>
-                <node concept="aZer4" id="5310cdpKrGC" role="3XD1gS">
-                  <property role="TrG5h" value="TParam" />
-                  <node concept="2OqwBi" id="5310cdpKsrq" role="3gj$pD">
-                    <node concept="2OqwBi" id="5310cdpKsrr" role="2Oq$k0">
-                      <node concept="3A2sRY" id="5310cdpKsrs" role="2Oq$k0">
-                        <ref role="3A2yKK" node="5310cdpKraY" resolve="cls" />
-                      </node>
-                      <node concept="3Tsc0h" id="5310cdpKsrt" role="2OqNvi">
-                        <ref role="3TtcxE" to="tpee:g96eVAe" resolve="typeVariableDeclaration" />
-                      </node>
-                    </node>
-                    <node concept="34oBXx" id="5310cdpKsru" role="2OqNvi" />
-                  </node>
-                </node>
                 <node concept="aZer4" id="5310cdpKraG" role="3XD1gS">
-                  <property role="TrG5h" value="SubtypingPath" />
+                  <property role="TrG5h" value="SubclassPath" />
                 </node>
               </node>
             </node>
@@ -12482,25 +12246,13 @@
                     <node concept="1HFMs5" id="1mdVbTSaq3c" role="3AunhB">
                       <node concept="ns1u0" id="JOGAOsVtag" role="1uarlW">
                         <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
-                        <node concept="nsMwS" id="JOGAOsVtah" role="ns1xD">
-                          <ref role="nsMwP" node="JOGAOsVt2e" resolve="parameter" />
-                          <node concept="1nq8_$" id="49obaclfij5" role="nsMwV">
-                            <node concept="a7P8L" id="5310cdpKrHk" role="1nq8_t">
-                              <ref role="a7OzE" node="5310cdpKrFX" resolve="SParam" />
-                            </node>
-                          </node>
-                        </node>
                         <node concept="nsMwS" id="JOGAOsVtai" role="ns1xD">
                           <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
-                          <node concept="2OqwBi" id="Lu45F7uK6a" role="nsMwV">
-                            <node concept="2JrnkZ" id="Lu45F7uK6b" role="2Oq$k0">
-                              <node concept="3A2sRY" id="Lu45F7uK6e" role="2JrQYb">
-                                <ref role="3A2yKK" node="5310cdpKraY" resolve="cls" />
-                              </node>
-                            </node>
-                            <node concept="liA8E" id="Lu45F7uK6d" role="2OqNvi">
-                              <ref role="37wK5l" to="mhbf:~SNode.getReference():org.jetbrains.mps.openapi.model.SNodeReference" resolve="getReference" />
+                          <node concept="2OqwBi" id="2rIdnPv4fXU" role="nsMwV">
+                            <node concept="3A2sRY" id="Lu45F7uK6e" role="2Oq$k0">
+                              <ref role="3A2yKK" node="5310cdpKraY" resolve="cls" />
                             </node>
+                            <node concept="iZEcu" id="2rIdnPv4ha$" role="2OqNvi" />
                           </node>
                         </node>
                       </node>
@@ -12511,25 +12263,19 @@
                     <node concept="1HFMs5" id="1mdVbTSaq2W" role="3AunhB">
                       <node concept="ns1u0" id="JOGAOsVt91" role="1uarlW">
                         <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
-                        <node concept="nsMwS" id="JOGAOsVt92" role="ns1xD">
-                          <ref role="nsMwP" node="JOGAOsVt2e" resolve="parameter" />
-                          <node concept="1nq8_$" id="49obaclfijd" role="nsMwV">
-                            <node concept="a7P8L" id="5310cdpKrL3" role="1nq8_t">
-                              <ref role="a7OzE" node="5310cdpKrGC" resolve="TParam" />
-                            </node>
-                          </node>
-                        </node>
                         <node concept="nsMwS" id="JOGAOsVt93" role="ns1xD">
                           <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
-                          <node concept="2OqwBi" id="Lu45F7uK5S" role="nsMwV">
-                            <node concept="2JrnkZ" id="Lu45F7uK5T" role="2Oq$k0">
-                              <node concept="3A2sRY" id="Lu45F7uK5W" role="2JrQYb">
-                                <ref role="3A2yKK" node="5310cdpKraY" resolve="cls" />
-                              </node>
-                            </node>
-                            <node concept="liA8E" id="Lu45F7uK5V" role="2OqNvi">
-                              <ref role="37wK5l" to="mhbf:~SNode.getReference():org.jetbrains.mps.openapi.model.SNodeReference" resolve="getReference" />
+                          <node concept="2OqwBi" id="2rIdnPv4hzB" role="nsMwV">
+                            <node concept="3A2sRY" id="Lu45F7uK5W" role="2Oq$k0">
+                              <ref role="3A2yKK" node="5310cdpKraY" resolve="cls" />
                             </node>
+                            <node concept="iZEcu" id="2rIdnPv4ikh" role="2OqNvi" />
+                          </node>
+                        </node>
+                        <node concept="nsMwS" id="2rIdnPwrAwh" role="ns1xD">
+                          <ref role="nsMwP" node="JOGAOsVt2d" resolve="kind" />
+                          <node concept="Xl_RD" id="2rIdnPwrAz_" role="nsMwV">
+                            <property role="Xl_RC" value="raw" />
                           </node>
                         </node>
                       </node>
@@ -12538,7 +12284,7 @@
                       </node>
                     </node>
                     <node concept="a7P8L" id="5310cdpKraW" role="3AunhB">
-                      <ref role="a7OzE" node="5310cdpKraG" resolve="SubtypingPath" />
+                      <ref role="a7OzE" node="5310cdpKraG" resolve="SubclassPath" />
                     </node>
                   </node>
                 </node>
@@ -12563,61 +12309,7 @@
               </node>
             </node>
             <node concept="3Aq9E8" id="5310cdpKr99" role="1nLNMd">
-              <node concept="3I6sU6" id="5310cdpKr9r" role="3Ip0Jz">
-                <node concept="3IrJb3" id="5310cdpKr9s" role="3I6sU7">
-                  <node concept="3clFbS" id="5310cdpKr9t" role="3IrJb0">
-                    <node concept="1Dw8fO" id="5310cdpKraa" role="3cqZAp">
-                      <node concept="3clFbS" id="5310cdpKrab" role="2LFqv$">
-                        <node concept="3Aqczg" id="5310cdpKrac" role="3cqZAp">
-                          <node concept="3Aqt3T" id="5310cdpKrad" role="3Aqpz8">
-                            <ref role="3AqCNq" node="6KkyQm4aRV3" resolve="containedIn" />
-                            <node concept="a7P8L" id="5310cdpKrae" role="3AunhB">
-                              <ref role="a7OzE" node="5310cdpKrFX" resolve="SParam" />
-                              <node concept="37vLTw" id="5310cdpKrag" role="3gCZO6">
-                                <ref role="3cqZAo" node="5310cdpKrak" resolve="i" />
-                              </node>
-                            </node>
-                            <node concept="a7P8L" id="5310cdpKrah" role="3AunhB">
-                              <ref role="a7OzE" node="5310cdpKrGC" resolve="TParam" />
-                              <node concept="37vLTw" id="5310cdpKraj" role="3gCZO6">
-                                <ref role="3cqZAo" node="5310cdpKrak" resolve="i" />
-                              </node>
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                      <node concept="3cpWsn" id="5310cdpKrak" role="1Duv9x">
-                        <property role="TrG5h" value="i" />
-                        <node concept="10Oyi0" id="5310cdpKral" role="1tU5fm" />
-                        <node concept="3cmrfG" id="5310cdpKram" role="33vP2m">
-                          <property role="3cmrfH" value="0" />
-                        </node>
-                      </node>
-                      <node concept="3eOVzh" id="5310cdpKran" role="1Dwp0S">
-                        <node concept="37vLTw" id="5310cdpKrao" role="3uHU7B">
-                          <ref role="3cqZAo" node="5310cdpKrak" resolve="i" />
-                        </node>
-                        <node concept="2OqwBi" id="5310cdpKrap" role="3uHU7w">
-                          <node concept="2OqwBi" id="5310cdpKraq" role="2Oq$k0">
-                            <node concept="3A2sRY" id="5310cdpKrar" role="2Oq$k0">
-                              <ref role="3A2yKK" node="5310cdpKraY" resolve="cls" />
-                            </node>
-                            <node concept="3Tsc0h" id="5310cdpKras" role="2OqNvi">
-                              <ref role="3TtcxE" to="tpee:g96eVAe" resolve="typeVariableDeclaration" />
-                            </node>
-                          </node>
-                          <node concept="34oBXx" id="5310cdpKrat" role="2OqNvi" />
-                        </node>
-                      </node>
-                      <node concept="3uNrnE" id="5310cdpKrau" role="1Dwrff">
-                        <node concept="37vLTw" id="5310cdpKrav" role="2$L3a6">
-                          <ref role="3cqZAo" node="5310cdpKrak" resolve="i" />
-                        </node>
-                      </node>
-                    </node>
-                  </node>
-                </node>
-              </node>
+              <node concept="3I6sU6" id="5310cdpKr9r" role="3Ip0Jz" />
             </node>
           </node>
         </node>
@@ -12629,9 +12321,222 @@
         </node>
       </node>
     </node>
+    <node concept="1nLNMY" id="2rIdnPwrAgu" role="1nK1Vg">
+      <property role="TrG5h" value="dpromote_reflexive" />
+      <node concept="3clFbS" id="2rIdnPwrAgv" role="1nLNMH">
+        <node concept="3cpWs8" id="2rIdnPwrAgw" role="3cqZAp">
+          <node concept="3cpWsn" id="2rIdnPwrAgx" role="3cpWs9">
+            <property role="TrG5h" value="tvds" />
+            <node concept="2I9FWS" id="2rIdnPwrAgy" role="1tU5fm">
+              <ref role="2I9WkF" to="tpee:g96euPO" resolve="TypeVariableDeclaration" />
+            </node>
+            <node concept="2OqwBi" id="2rIdnPwrAgz" role="33vP2m">
+              <node concept="3A2sRY" id="2rIdnPwrAg$" role="2Oq$k0">
+                <ref role="3A2yKK" node="2rIdnPwrAhI" resolve="cls" />
+              </node>
+              <node concept="3Tsc0h" id="2rIdnPwrAg_" role="2OqNvi">
+                <ref role="3TtcxE" to="tpee:g96eVAe" resolve="typeVariableDeclaration" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="2rIdnPwrAgA" role="3cqZAp" />
+        <node concept="1nLNNL" id="2rIdnPwrAgB" role="3cqZAp">
+          <node concept="1nLNMm" id="2rIdnPwrAgC" role="1nLNNK">
+            <node concept="0eUR_" id="2rIdnPwrAgD" role="0UC6o">
+              <node concept="3NuqgR" id="2rIdnPwrAgE" role="0eVf_">
+                <node concept="aZer4" id="2rIdnPwrAgF" role="3XD1gS">
+                  <property role="TrG5h" value="S" />
+                </node>
+                <node concept="aZer4" id="2rIdnPwrAgG" role="3XD1gS">
+                  <property role="TrG5h" value="SP" />
+                  <node concept="2OqwBi" id="2rIdnPwrAgH" role="3gj$pD">
+                    <node concept="37vLTw" id="2rIdnPwrAgI" role="2Oq$k0">
+                      <ref role="3cqZAo" node="2rIdnPwrAgx" resolve="tvds" />
+                    </node>
+                    <node concept="34oBXx" id="2rIdnPwrAgJ" role="2OqNvi" />
+                  </node>
+                </node>
+                <node concept="aZer4" id="2rIdnPwrAgK" role="3XD1gS">
+                  <property role="TrG5h" value="T" />
+                </node>
+                <node concept="aZer4" id="2rIdnPwrAgL" role="3XD1gS">
+                  <property role="TrG5h" value="TP" />
+                  <node concept="2OqwBi" id="2rIdnPwrAgM" role="3gj$pD">
+                    <node concept="37vLTw" id="2rIdnPwrAgN" role="2Oq$k0">
+                      <ref role="3cqZAo" node="2rIdnPwrAgx" resolve="tvds" />
+                    </node>
+                    <node concept="34oBXx" id="2rIdnPwrAgO" role="2OqNvi" />
+                  </node>
+                </node>
+                <node concept="aZer4" id="2rIdnPwrAgP" role="3XD1gS">
+                  <property role="TrG5h" value="SubclassPath" />
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq93q" id="2rIdnPwrAgQ" role="1nLNMb">
+              <property role="3ArMco" value="false" />
+              <node concept="3I6sU6" id="2rIdnPwrAgR" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPwrAgS" role="3I6sU7">
+                  <node concept="3Aqt3T" id="2rIdnPwrAgT" role="3I6s78">
+                    <ref role="3AqCNq" node="WauyOOvQCY" resolve="dpromote" />
+                    <node concept="1HFMs5" id="2rIdnPwrAgU" role="3AunhB">
+                      <node concept="ns1u0" id="2rIdnPwrAgV" role="1uarlW">
+                        <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
+                        <node concept="nsMwS" id="2rIdnPwrAgW" role="ns1xD">
+                          <ref role="nsMwP" node="JOGAOsVt2e" resolve="parameter" />
+                          <node concept="1nq8_$" id="2rIdnPwrAgX" role="nsMwV">
+                            <node concept="a7P8L" id="2rIdnPwrAgY" role="1nq8_t">
+                              <ref role="a7OzE" node="2rIdnPwrAgG" resolve="SP" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="nsMwS" id="2rIdnPwrAgZ" role="ns1xD">
+                          <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
+                          <node concept="2OqwBi" id="2rIdnPwrAh0" role="nsMwV">
+                            <node concept="3A2sRY" id="2rIdnPwrAh1" role="2Oq$k0">
+                              <ref role="3A2yKK" node="2rIdnPwrAhI" resolve="cls" />
+                            </node>
+                            <node concept="iZEcu" id="2rIdnPwrAh2" role="2OqNvi" />
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="a7P8L" id="2rIdnPwrAh3" role="1uarlU">
+                        <ref role="a7OzE" node="2rIdnPwrAgF" resolve="S" />
+                      </node>
+                    </node>
+                    <node concept="1HFMs5" id="2rIdnPwrAh4" role="3AunhB">
+                      <node concept="ns1u0" id="2rIdnPwrAh5" role="1uarlW">
+                        <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
+                        <node concept="nsMwS" id="2rIdnPwrAh6" role="ns1xD">
+                          <ref role="nsMwP" node="JOGAOsVt2e" resolve="parameter" />
+                          <node concept="1nq8_$" id="2rIdnPwrAh7" role="nsMwV">
+                            <node concept="a7P8L" id="2rIdnPwrAh8" role="1nq8_t">
+                              <ref role="a7OzE" node="2rIdnPwrAgL" resolve="TP" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="nsMwS" id="2rIdnPwrAh9" role="ns1xD">
+                          <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
+                          <node concept="2OqwBi" id="2rIdnPwrAha" role="nsMwV">
+                            <node concept="3A2sRY" id="2rIdnPwrAhb" role="2Oq$k0">
+                              <ref role="3A2yKK" node="2rIdnPwrAhI" resolve="cls" />
+                            </node>
+                            <node concept="iZEcu" id="2rIdnPwrAhc" role="2OqNvi" />
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="a7P8L" id="2rIdnPwrAhd" role="1uarlU">
+                        <ref role="a7OzE" node="2rIdnPwrAgK" resolve="T" />
+                      </node>
+                    </node>
+                    <node concept="a7P8L" id="2rIdnPwrAhe" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPwrAgP" resolve="SubclassPath" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9_M" id="2rIdnPwrAhf" role="1nLNMa">
+              <node concept="3I6sU6" id="2rIdnPwrAhg" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPwrAhh" role="3I6sU7">
+                  <node concept="2aM9Np" id="2rIdnPwrAhi" role="3I6s78">
+                    <node concept="a7P8L" id="2rIdnPwrAhj" role="2aLmnP">
+                      <ref role="a7OzE" node="2rIdnPwrAgF" resolve="S" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="3I6s7M" id="2rIdnPwrAhk" role="3I6sU7">
+                  <node concept="2aM9Np" id="2rIdnPwrAhl" role="3I6s78">
+                    <node concept="a7P8L" id="2rIdnPwrAhm" role="2aLmnP">
+                      <ref role="a7OzE" node="2rIdnPwrAgK" resolve="T" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="2rIdnPwrAhn" role="1nLNMd">
+              <node concept="3I6sU6" id="2rIdnPwrAho" role="3Ip0Jz">
+                <node concept="3IrJb3" id="2rIdnPwrAhp" role="3I6sU7">
+                  <node concept="3clFbS" id="2rIdnPwrAhq" role="3IrJb0">
+                    <node concept="1Dw8fO" id="2rIdnPwrAhr" role="3cqZAp">
+                      <node concept="3clFbS" id="2rIdnPwrAhs" role="2LFqv$">
+                        <node concept="3Aqczg" id="2rIdnPwrAht" role="3cqZAp">
+                          <node concept="3Aqt3T" id="2rIdnPwrAhu" role="3Aqpz8">
+                            <ref role="3AqCNq" node="6KkyQm4aRV3" resolve="containedIn" />
+                            <node concept="a7P8L" id="2rIdnPwrAhv" role="3AunhB">
+                              <ref role="a7OzE" node="2rIdnPwrAgG" resolve="SP" />
+                              <node concept="37vLTw" id="2rIdnPwrAhw" role="3gCZO6">
+                                <ref role="3cqZAo" node="2rIdnPwrAhz" resolve="i" />
+                              </node>
+                            </node>
+                            <node concept="a7P8L" id="2rIdnPwrAhx" role="3AunhB">
+                              <ref role="a7OzE" node="2rIdnPwrAgL" resolve="TP" />
+                              <node concept="37vLTw" id="2rIdnPwrAhy" role="3gCZO6">
+                                <ref role="3cqZAo" node="2rIdnPwrAhz" resolve="i" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="3cpWsn" id="2rIdnPwrAhz" role="1Duv9x">
+                        <property role="TrG5h" value="i" />
+                        <node concept="10Oyi0" id="2rIdnPwrAh$" role="1tU5fm" />
+                        <node concept="3cmrfG" id="2rIdnPwrAh_" role="33vP2m">
+                          <property role="3cmrfH" value="0" />
+                        </node>
+                      </node>
+                      <node concept="3eOVzh" id="2rIdnPwrAhA" role="1Dwp0S">
+                        <node concept="37vLTw" id="2rIdnPwrAhB" role="3uHU7B">
+                          <ref role="3cqZAo" node="2rIdnPwrAhz" resolve="i" />
+                        </node>
+                        <node concept="2OqwBi" id="2rIdnPwrAhC" role="3uHU7w">
+                          <node concept="37vLTw" id="2rIdnPwrAhD" role="2Oq$k0">
+                            <ref role="3cqZAo" node="2rIdnPwrAgx" resolve="tvds" />
+                          </node>
+                          <node concept="34oBXx" id="2rIdnPwrAhE" role="2OqNvi" />
+                        </node>
+                      </node>
+                      <node concept="3uNrnE" id="2rIdnPwrAhF" role="1Dwrff">
+                        <node concept="37vLTw" id="2rIdnPwrAhG" role="2$L3a6">
+                          <ref role="3cqZAo" node="2rIdnPwrAhz" resolve="i" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2t___k" id="2rIdnPwrAhH" role="1nLNMg">
+        <ref role="2t_S0q" to="tpee:g7pOWCK" resolve="Classifier" />
+        <node concept="3A20r5" id="2rIdnPwrAhI" role="2t_VXX">
+          <property role="TrG5h" value="cls" />
+        </node>
+      </node>
+    </node>
     <node concept="1nLNMY" id="12QmIo_9DJJ" role="1nK1Vg">
       <property role="TrG5h" value="dpromote_induction" />
       <node concept="3clFbS" id="12QmIo_9DJK" role="1nLNMH">
+        <node concept="3cpWs8" id="2rIdnPv4inS" role="3cqZAp">
+          <node concept="3cpWsn" id="2rIdnPv4inT" role="3cpWs9">
+            <property role="TrG5h" value="tvds" />
+            <node concept="2I9FWS" id="2rIdnPv4inP" role="1tU5fm">
+              <ref role="2I9WkF" to="tpee:g96euPO" resolve="TypeVariableDeclaration" />
+            </node>
+            <node concept="2OqwBi" id="2rIdnPv4inU" role="33vP2m">
+              <node concept="3A2sRY" id="2rIdnPv4inV" role="2Oq$k0">
+                <ref role="3A2yKK" node="12QmIo_9FsU" resolve="cls" />
+              </node>
+              <node concept="3Tsc0h" id="2rIdnPv4inW" role="2OqNvi">
+                <ref role="3TtcxE" to="tpee:g96eVAe" resolve="typeVariableDeclaration" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="2rIdnPv4iDl" role="3cqZAp" />
         <node concept="2Gpval" id="12QmIo_9ImR" role="3cqZAp">
           <node concept="3clFbS" id="12QmIo_9GpT" role="2LFqv$">
             <node concept="3cpWs8" id="6EY0p2y2kgQ" role="3cqZAp">
@@ -12646,7 +12551,7 @@
                   <node concept="1eOMI4" id="6EY0p2y2kk3" role="2Oq$k0">
                     <node concept="2OqwBi" id="6EY0p2y2kjY" role="1eOMHV">
                       <node concept="2GrUjf" id="6EY0p2y2kjZ" role="2Oq$k0">
-                        <ref role="2Gs0qQ" node="12QmIo_9Inn" resolve="extended" />
+                        <ref role="2Gs0qQ" node="12QmIo_9Inn" resolve="ext" />
                       </node>
                       <node concept="2Rf3mk" id="6EY0p2y2kk0" role="2OqNvi">
                         <node concept="1xMEDy" id="6EY0p2y2kk1" role="1xVPHs">
@@ -12692,13 +12597,8 @@
                       <ref role="3cqZAo" node="6EY0p2y2kgR" resolve="usedTvds" />
                     </node>
                     <node concept="4Tj9Z" id="6EY0p2y0i85" role="2OqNvi">
-                      <node concept="2OqwBi" id="6EY0p2y0i86" role="576Qk">
-                        <node concept="3A2sRY" id="6EY0p2y0i87" role="2Oq$k0">
-                          <ref role="3A2yKK" node="12QmIo_9FsU" resolve="cls" />
-                        </node>
-                        <node concept="3Tsc0h" id="6EY0p2y0i88" role="2OqNvi">
-                          <ref role="3TtcxE" to="tpee:g96eVAe" resolve="typeVariableDeclaration" />
-                        </node>
+                      <node concept="37vLTw" id="2rIdnPv4inY" role="576Qk">
+                        <ref role="3cqZAo" node="2rIdnPv4inT" resolve="tvds" />
                       </node>
                     </node>
                   </node>
@@ -12741,46 +12641,34 @@
                             </node>
                           </node>
                           <node concept="a7P8L" id="12QmIo_9Mxw" role="1uarlU">
-                            <ref role="a7OzE" node="12QmIo_9LbO" resolve="Subtype" />
+                            <ref role="a7OzE" node="12QmIo_9LbO" resolve="S" />
                           </node>
                         </node>
                         <node concept="a7P8L" id="12QmIo_9Mxx" role="3AunhB">
-                          <ref role="a7OzE" node="12QmIo_9LbV" resolve="Supertype" />
+                          <ref role="a7OzE" node="12QmIo_9LbV" resolve="T" />
                         </node>
                         <node concept="1HFMs5" id="12QmIo_9Mxy" role="3AunhB">
                           <node concept="HAVWr" id="12QmIo_9Mxz" role="1uarlW">
                             <node concept="2IllgU" id="12QmIo_9Mx$" role="HAVW7" />
-                            <node concept="1oi5UN" id="12QmIo_9Mx_" role="HAVW7">
-                              <node concept="22Ky0T" id="12QmIo_9MxA" role="lGtFl">
-                                <node concept="1nq8_$" id="12QmIo_9MxB" role="22Ky0K">
-                                  <node concept="ns1u0" id="12QmIo_9MxC" role="1nq8_t">
-                                    <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifierType" />
-                                    <node concept="nsMwS" id="12QmIo_9MxD" role="ns1xD">
-                                      <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
-                                      <node concept="2OqwBi" id="12QmIo_9MxE" role="nsMwV">
-                                        <node concept="2JrnkZ" id="12QmIo_9MxF" role="2Oq$k0">
-                                          <node concept="2OqwBi" id="12QmIo_9MxG" role="2JrQYb">
-                                            <node concept="2GrUjf" id="12QmIo_9MWL" role="2Oq$k0">
-                                              <ref role="2Gs0qQ" node="12QmIo_9Inn" resolve="extended" />
-                                            </node>
-                                            <node concept="3TrEf2" id="12QmIo_9MxI" role="2OqNvi">
-                                              <ref role="3Tt5mk" to="tpee:g7uigIF" resolve="classifier" />
-                                            </node>
-                                          </node>
-                                        </node>
-                                        <node concept="liA8E" id="12QmIo_9MxJ" role="2OqNvi">
-                                          <ref role="37wK5l" to="mhbf:~SNode.getReference():org.jetbrains.mps.openapi.model.SNodeReference" resolve="getReference" />
-                                        </node>
-                                      </node>
+                            <node concept="1oi5XN" id="2rIdnPwixVK" role="HAVW7">
+                              <node concept="22Ky0T" id="2rIdnPwixXr" role="lGtFl">
+                                <node concept="2OqwBi" id="2rIdnPv6c_5" role="22Ky0K">
+                                  <node concept="2OqwBi" id="2rIdnPv4k02" role="2Oq$k0">
+                                    <node concept="2GrUjf" id="2rIdnPv4jlN" role="2Oq$k0">
+                                      <ref role="2Gs0qQ" node="12QmIo_9Inn" resolve="ext" />
+                                    </node>
+                                    <node concept="3TrEf2" id="2rIdnPv4UXq" role="2OqNvi">
+                                      <ref role="3Tt5mk" to="tpee:g7uigIF" resolve="classifier" />
                                     </node>
                                   </node>
+                                  <node concept="iZEcu" id="2rIdnPv6Nnk" role="2OqNvi" />
                                 </node>
                               </node>
                             </node>
                             <node concept="2IllgU" id="12QmIo_9MxK" role="HAVW7" />
                           </node>
                           <node concept="a7P8L" id="12QmIo_9MxL" role="1uarlU">
-                            <ref role="a7OzE" node="12QmIo_9LSn" resolve="SubtypingPath" />
+                            <ref role="a7OzE" node="12QmIo_9LSn" resolve="SubclassPath" />
                           </node>
                         </node>
                       </node>
@@ -12790,69 +12678,37 @@
                 <node concept="0eUR_" id="12QmIo_9LbM" role="0UC6o">
                   <node concept="3NuqgR" id="12QmIo_9LbN" role="0eVf_">
                     <node concept="aZer4" id="12QmIo_9LbO" role="3XD1gS">
-                      <property role="TrG5h" value="Subtype" />
+                      <property role="TrG5h" value="S" />
                     </node>
                     <node concept="aZer4" id="12QmIo_9LbP" role="3XD1gS">
                       <property role="TrG5h" value="SP" />
                       <node concept="2OqwBi" id="12QmIo_9LbQ" role="3gj$pD">
-                        <node concept="2OqwBi" id="12QmIo_9LbR" role="2Oq$k0">
-                          <node concept="3A2sRY" id="12QmIo_9LbS" role="2Oq$k0">
-                            <ref role="3A2yKK" node="12QmIo_9FsU" resolve="cls" />
-                          </node>
-                          <node concept="3Tsc0h" id="12QmIo_9LbT" role="2OqNvi">
-                            <ref role="3TtcxE" to="tpee:g96eVAe" resolve="typeVariableDeclaration" />
-                          </node>
+                        <node concept="37vLTw" id="2rIdnPv4inX" role="2Oq$k0">
+                          <ref role="3cqZAo" node="2rIdnPv4inT" resolve="tvds" />
                         </node>
                         <node concept="34oBXx" id="12QmIo_9LbU" role="2OqNvi" />
                       </node>
                     </node>
                     <node concept="aZer4" id="12QmIo_9LbV" role="3XD1gS">
-                      <property role="TrG5h" value="Supertype" />
+                      <property role="TrG5h" value="T" />
                     </node>
-                  </node>
-                  <node concept="3NuqgR" id="12QmIo_9LbW" role="0eVf_">
-                    <node concept="aZer4" id="12QmIo_9LbX" role="3XD1gS">
-                      <property role="TrG5h" value="TailCap" />
-                    </node>
-                    <node concept="aZer4" id="12QmIo_9LbY" role="3XD1gS">
-                      <property role="TrG5h" value="TailStub" />
-                    </node>
-                    <node concept="3uibUv" id="12QmIo_9LbZ" role="3vLBG7">
-                      <ref role="3uigEE" to="6exd:3OPtF03lco4" resolve="ListNode" />
+                    <node concept="aZer4" id="12QmIo_9M35" role="3XD1gS">
+                      <property role="TrG5h" value="ExtType" />
                     </node>
                   </node>
                 </node>
                 <node concept="0eUR_" id="12QmIo_9LSl" role="0UC6o">
                   <node concept="3NuqgR" id="12QmIo_9LSm" role="0eVf_">
                     <node concept="aZer4" id="12QmIo_9LSn" role="3XD1gS">
-                      <property role="TrG5h" value="SubtypingPath" />
+                      <property role="TrG5h" value="SubclassPath" />
                     </node>
                   </node>
-                </node>
-                <node concept="0eUR_" id="12QmIo_9M2W" role="0UC6o">
-                  <node concept="3NuqgR" id="12QmIo_9M2X" role="0eVf_">
-                    <node concept="aZer4" id="12QmIo_9M2Y" role="3XD1gS">
-                      <property role="TrG5h" value="SubtypeParams" />
-                      <node concept="2OqwBi" id="12QmIo_9M2Z" role="3gj$pD">
-                        <node concept="2OqwBi" id="12QmIo_9M30" role="2Oq$k0">
-                          <node concept="3A2sRY" id="12QmIo_9M31" role="2Oq$k0">
-                            <ref role="3A2yKK" node="12QmIo_9FsU" resolve="cls" />
-                          </node>
-                          <node concept="3Tsc0h" id="12QmIo_9M32" role="2OqNvi">
-                            <ref role="3TtcxE" to="tpee:g96eVAe" resolve="typeVariableDeclaration" />
-                          </node>
-                        </node>
-                        <node concept="34oBXx" id="12QmIo_9M33" role="2OqNvi" />
-                      </node>
+                  <node concept="3NuqgR" id="12QmIo_9LbW" role="0eVf_">
+                    <node concept="aZer4" id="12QmIo_9LbX" role="3XD1gS">
+                      <property role="TrG5h" value="Tail" />
                     </node>
-                    <node concept="aZer4" id="12QmIo_9M34" role="3XD1gS">
-                      <property role="TrG5h" value="ThisType" />
-                    </node>
-                    <node concept="aZer4" id="12QmIo_9M35" role="3XD1gS">
-                      <property role="TrG5h" value="ExtType" />
-                    </node>
-                    <node concept="aZer4" id="12QmIo_9M36" role="3XD1gS">
-                      <property role="TrG5h" value="TailSubtypingPath" />
+                    <node concept="3uibUv" id="12QmIo_9LbZ" role="3vLBG7">
+                      <ref role="3uigEE" to="6exd:3OPtF03lco4" resolve="ListNode" />
                     </node>
                   </node>
                 </node>
@@ -12860,39 +12716,6 @@
                   <node concept="3I6sU6" id="12QmIo_9NiR" role="3Ip0Jz">
                     <node concept="3IrJb3" id="12QmIo_9PUy" role="3I6sU7">
                       <node concept="3clFbS" id="12QmIo_9PUz" role="3IrJb0">
-                        <node concept="3SKdUt" id="12QmIo_9PU$" role="3cqZAp">
-                          <node concept="3SKdUq" id="12QmIo_9PU_" role="3SKWNk">
-                            <property role="3SKdUp" value="initialize the substitution with the values captured from the subtype" />
-                          </node>
-                        </node>
-                        <node concept="3clFbH" id="12QmIo_9PUA" role="3cqZAp" />
-                        <node concept="3SKdUt" id="12QmIo_9PUB" role="3cqZAp">
-                          <node concept="3SKdUq" id="12QmIo_9PUC" role="3SKWNk">
-                            <property role="3SKdUp" value="build a new type from the declaration of the extended type" />
-                          </node>
-                        </node>
-                        <node concept="3SKdUt" id="12QmIo_9PUD" role="3cqZAp">
-                          <node concept="3SKdUq" id="12QmIo_9PUE" role="3SKWNk">
-                            <property role="3SKdUp" value="all vars in the substitution get appropriate bounds" />
-                          </node>
-                        </node>
-                        <node concept="3clFbH" id="6EY0p2yFRDm" role="3cqZAp" />
-                        <node concept="3cpWs8" id="6EY0p2yFU4X" role="3cqZAp">
-                          <node concept="3cpWsn" id="6EY0p2yFU4Y" role="3cpWs9">
-                            <property role="TrG5h" value="tvds" />
-                            <node concept="2I9FWS" id="6EY0p2yFU4U" role="1tU5fm">
-                              <ref role="2I9WkF" to="tpee:g96euPO" resolve="TypeVariableDeclaration" />
-                            </node>
-                            <node concept="2OqwBi" id="6EY0p2yFU4Z" role="33vP2m">
-                              <node concept="3A2sRY" id="6EY0p2yFU50" role="2Oq$k0">
-                                <ref role="3A2yKK" node="12QmIo_9FsU" resolve="cls" />
-                              </node>
-                              <node concept="3Tsc0h" id="6EY0p2yFU51" role="2OqNvi">
-                                <ref role="3TtcxE" to="tpee:g96eVAe" resolve="typeVariableDeclaration" />
-                              </node>
-                            </node>
-                          </node>
-                        </node>
                         <node concept="3cpWs8" id="6EY0p2yFWDS" role="3cqZAp">
                           <node concept="3cpWsn" id="6EY0p2yFWDT" role="3cpWs9">
                             <property role="TrG5h" value="subs" />
@@ -12901,10 +12724,10 @@
                             </node>
                             <node concept="2ShNRf" id="6EY0p2yFWDU" role="33vP2m">
                               <node concept="1pGfFk" id="6EY0p2yFWDV" role="2ShVmc">
-                                <ref role="37wK5l" node="6EY0p2w8VPo" resolve="TypeVarSubstitution" />
+                                <ref role="37wK5l" node="6EY0p2wsoT6" resolve="TypeVarSubstitution" />
                                 <node concept="2OqwBi" id="6EY0p2yG8iH" role="37wK5m">
-                                  <node concept="37vLTw" id="6EY0p2yFWDW" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="6EY0p2yFU4Y" resolve="tvds" />
+                                  <node concept="37vLTw" id="2rIdnPv8vXJ" role="2Oq$k0">
+                                    <ref role="3cqZAo" node="2rIdnPv4inT" resolve="tvds" />
                                   </node>
                                   <node concept="3$u5V9" id="6EY0p2yGc9E" role="2OqNvi">
                                     <node concept="1bVj0M" id="6EY0p2yGc9G" role="23t8la">
@@ -12943,8 +12766,8 @@
                                       <node concept="37vLTw" id="6EY0p2yIt2Z" role="1y58nS">
                                         <ref role="3cqZAo" node="6EY0p2yFWH3" resolve="i" />
                                       </node>
-                                      <node concept="37vLTw" id="6EY0p2yG5Rm" role="1y566C">
-                                        <ref role="3cqZAo" node="6EY0p2yFU4Y" resolve="tvds" />
+                                      <node concept="37vLTw" id="2rIdnPv8w0F" role="1y566C">
+                                        <ref role="3cqZAo" node="2rIdnPv4inT" resolve="tvds" />
                                       </node>
                                     </node>
                                     <node concept="iZEcu" id="6EY0p2yKIOU" role="2OqNvi" />
@@ -12970,8 +12793,8 @@
                           </node>
                           <node concept="3eOVzh" id="6EY0p2yFYdj" role="1Dwp0S">
                             <node concept="2OqwBi" id="6EY0p2yG1cr" role="3uHU7w">
-                              <node concept="37vLTw" id="6EY0p2yFYdq" role="2Oq$k0">
-                                <ref role="3cqZAo" node="6EY0p2yFU4Y" resolve="tvds" />
+                              <node concept="37vLTw" id="2rIdnPv8w0C" role="2Oq$k0">
+                                <ref role="3cqZAo" node="2rIdnPv4inT" resolve="tvds" />
                               </node>
                               <node concept="34oBXx" id="6EY0p2yG4E9" role="2OqNvi" />
                             </node>
@@ -12989,61 +12812,13 @@
                         <node concept="1$59iH" id="12QmIo_9PUF" role="3cqZAp">
                           <ref role="1$58ik" node="6hqFpWmN1Sp" resolve="substitution" />
                           <node concept="3clFbS" id="12QmIo_9PUH" role="1$59iG">
-                            <node concept="3SKdUt" id="12QmIo_9PUI" role="3cqZAp">
-                              <node concept="3SKdUq" id="12QmIo_9PUJ" role="3SKWNk">
-                                <property role="3SKdUp" value="the subtype we're given. now we have all the parameters captured in SubtypeParams" />
-                              </node>
-                            </node>
-                            <node concept="3SKdUt" id="12QmIo_9PUK" role="3cqZAp">
-                              <node concept="3SKdUq" id="12QmIo_9PUL" role="3SKWNk">
-                                <property role="3SKdUp" value="FIXME: WTF? is ThisType really used?" />
-                              </node>
-                            </node>
-                            <node concept="1X3_iC" id="6EY0p2yGeBl" role="lGtFl">
-                              <property role="3V$3am" value="statement" />
-                              <property role="3V$3ak" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068580123136/1068581517665" />
-                              <node concept="3Aqczg" id="12QmIo_9PUM" role="8Wnug">
-                                <node concept="B_ONY" id="12QmIo_9PUN" role="3Aqpz8">
-                                  <ref role="17QRF" node="7XRk2O3zfxt" resolve="classifierType" />
-                                  <node concept="a7P8L" id="12QmIo_9PUO" role="B_OMz">
-                                    <ref role="a7OzE" node="12QmIo_9M34" resolve="ThisType" />
-                                  </node>
-                                  <node concept="1Q7qz5" id="12QmIo_9PUP" role="150vd">
-                                    <node concept="1Q7q5z" id="12QmIo_9PUQ" role="1Q7qz4">
-                                      <ref role="1Q7tcy" node="7XRk2O3zfpB" resolve="cls1" />
-                                      <node concept="3A2sRY" id="12QmIo_9PUR" role="1KxKwY">
-                                        <ref role="3A2yKK" node="12QmIo_9FsU" resolve="cls" />
-                                      </node>
-                                    </node>
-                                    <node concept="1Q7q5z" id="12QmIo_9PUS" role="1Q7qz4">
-                                      <ref role="1Q7tcy" node="7XRk2O3zfvv" resolve="arguments" />
-                                      <node concept="10Nm6u" id="12QmIo_9PUT" role="1KxKwY" />
-                                    </node>
-                                  </node>
-                                </node>
-                              </node>
-                            </node>
-                            <node concept="1X3_iC" id="6EY0p2yGeBN" role="lGtFl">
-                              <property role="3V$3am" value="statement" />
-                              <property role="3V$3ak" value="f3061a53-9226-4cc5-a443-f952ceaf5816/1068580123136/1068581517665" />
-                              <node concept="3Aqczg" id="12QmIo_9PUU" role="8Wnug">
-                                <node concept="3A8Hvi" id="12QmIo_9PUV" role="3Aqpz8">
-                                  <node concept="a7P8L" id="12QmIo_9PUW" role="3A8wtg">
-                                    <ref role="a7OzE" node="12QmIo_9LbO" resolve="Subtype" />
-                                  </node>
-                                  <node concept="a7P8L" id="12QmIo_9PUX" role="3A8w4Q">
-                                    <ref role="a7OzE" node="12QmIo_9M34" resolve="ThisType" />
-                                  </node>
-                                </node>
-                              </node>
-                            </node>
                             <node concept="3Aqczg" id="12QmIo_9PUY" role="3cqZAp">
                               <node concept="1imXTs" id="12QmIo_9PUZ" role="3Aqpz8">
                                 <node concept="a7P8L" id="12QmIo_9PV0" role="1imXu6">
                                   <ref role="a7OzE" node="12QmIo_9M35" resolve="ExtType" />
                                 </node>
                                 <node concept="2GrUjf" id="12QmIo_9Q05" role="1imXSf">
-                                  <ref role="2Gs0qQ" node="12QmIo_9Inn" resolve="extended" />
+                                  <ref role="2Gs0qQ" node="12QmIo_9Inn" resolve="ext" />
                                 </node>
                               </node>
                             </node>
@@ -13052,13 +12827,7 @@
                             <ref role="3cqZAo" node="6EY0p2yFWDT" resolve="subs" />
                           </node>
                         </node>
-                        <node concept="3clFbH" id="12QmIo_9PV2" role="3cqZAp" />
-                        <node concept="3SKdUt" id="12QmIo_9PV3" role="3cqZAp">
-                          <node concept="3SKdUq" id="12QmIo_9PV4" role="3SKWNk">
-                            <property role="3SKdUp" value="unify matching type variables" />
-                          </node>
-                        </node>
-                        <node concept="3clFbH" id="12QmIo_9PV5" role="3cqZAp" />
+                        <node concept="3clFbH" id="2rIdnPwb9C6" role="3cqZAp" />
                         <node concept="3SKdUt" id="12QmIo_9PV6" role="3cqZAp">
                           <node concept="3SKdUq" id="12QmIo_9PV7" role="3SKWNk">
                             <property role="3SKdUp" value="induction on List" />
@@ -13067,7 +12836,7 @@
                         <node concept="3Aqczg" id="12QmIo_9PV8" role="3cqZAp">
                           <node concept="3A8Hvi" id="12QmIo_9PV9" role="3Aqpz8">
                             <node concept="a7P8L" id="12QmIo_9PVa" role="3A8wtg">
-                              <ref role="a7OzE" node="12QmIo_9LSn" resolve="SubtypingPath" />
+                              <ref role="a7OzE" node="12QmIo_9LSn" resolve="SubclassPath" />
                             </node>
                             <node concept="HAVWr" id="12QmIo_9PVb" role="3A8w4Q">
                               <node concept="2IllgU" id="12QmIo_9PVc" role="HAVW7" />
@@ -13075,35 +12844,7 @@
                                 <node concept="22Ky0T" id="12QmIo_9PVe" role="lGtFl">
                                   <node concept="1nq8_$" id="12QmIo_9PVf" role="22Ky0K">
                                     <node concept="a7P8L" id="12QmIo_9PVg" role="1nq8_t">
-                                      <ref role="a7OzE" node="12QmIo_9LbX" resolve="TailCap" />
-                                    </node>
-                                  </node>
-                                </node>
-                              </node>
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="3Aqczg" id="12QmIo_9PVh" role="3cqZAp">
-                          <node concept="3A8Hvi" id="12QmIo_9PVi" role="3Aqpz8">
-                            <node concept="a7P8L" id="12QmIo_9PVj" role="3A8w4Q">
-                              <ref role="a7OzE" node="12QmIo_9LbY" resolve="TailStub" />
-                            </node>
-                            <node concept="a7P8L" id="12QmIo_9PVk" role="3A8wtg">
-                              <ref role="a7OzE" node="12QmIo_9LbX" resolve="TailCap" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="3Aqczg" id="12QmIo_9PVl" role="3cqZAp">
-                          <node concept="3A8Hvi" id="12QmIo_9PVm" role="3Aqpz8">
-                            <node concept="a7P8L" id="12QmIo_9PVn" role="3A8wtg">
-                              <ref role="a7OzE" node="12QmIo_9M36" resolve="TailSubtypingPath" />
-                            </node>
-                            <node concept="HAVWr" id="12QmIo_9PVo" role="3A8w4Q">
-                              <node concept="1oi5UN" id="12QmIo_9PVp" role="HAVW7">
-                                <node concept="22Ky0T" id="12QmIo_9PVq" role="lGtFl">
-                                  <node concept="1nq8_$" id="12QmIo_9PVr" role="22Ky0K">
-                                    <node concept="a7P8L" id="12QmIo_9PVs" role="1nq8_t">
-                                      <ref role="a7OzE" node="12QmIo_9LbY" resolve="TailStub" />
+                                      <ref role="a7OzE" node="12QmIo_9LbX" resolve="Tail" />
                                     </node>
                                   </node>
                                 </node>
@@ -13118,10 +12859,18 @@
                               <ref role="a7OzE" node="12QmIo_9M35" resolve="ExtType" />
                             </node>
                             <node concept="a7P8L" id="12QmIo_9PVw" role="3AunhB">
-                              <ref role="a7OzE" node="12QmIo_9LbV" resolve="Supertype" />
+                              <ref role="a7OzE" node="12QmIo_9LbV" resolve="T" />
                             </node>
-                            <node concept="a7P8L" id="12QmIo_9PVx" role="3AunhB">
-                              <ref role="a7OzE" node="12QmIo_9M36" resolve="TailSubtypingPath" />
+                            <node concept="HAVWr" id="2rIdnPw9FII" role="3AunhB">
+                              <node concept="1oi5UN" id="2rIdnPw9FJE" role="HAVW7">
+                                <node concept="22Ky0T" id="2rIdnPw9FKy" role="lGtFl">
+                                  <node concept="1nq8_$" id="2rIdnPw9FLr" role="22Ky0K">
+                                    <node concept="a7P8L" id="2rIdnPw9FLq" role="1nq8_t">
+                                      <ref role="a7OzE" node="12QmIo_9LbX" resolve="Tail" />
+                                    </node>
+                                  </node>
+                                </node>
+                              </node>
                             </node>
                           </node>
                         </node>
@@ -13134,14 +12883,14 @@
                     <node concept="3I6s7M" id="12QmIo_9PJ$" role="3I6sU7">
                       <node concept="2aM9Np" id="12QmIo_9PJ_" role="3I6s78">
                         <node concept="a7P8L" id="12QmIo_9PJA" role="2aLmnP">
-                          <ref role="a7OzE" node="12QmIo_9LbO" resolve="Subtype" />
+                          <ref role="a7OzE" node="12QmIo_9LbO" resolve="S" />
                         </node>
                       </node>
                     </node>
                     <node concept="3I6s7M" id="12QmIo_9PJB" role="3I6sU7">
                       <node concept="2aM9Np" id="12QmIo_9PJC" role="3I6s78">
                         <node concept="a7P8L" id="12QmIo_9PJD" role="2aLmnP">
-                          <ref role="a7OzE" node="12QmIo_9LbV" resolve="Supertype" />
+                          <ref role="a7OzE" node="12QmIo_9LbV" resolve="T" />
                         </node>
                       </node>
                     </node>
@@ -13159,7 +12908,7 @@
             </node>
           </node>
           <node concept="2GrKxI" id="12QmIo_9Inn" role="2Gsz3X">
-            <property role="TrG5h" value="extended" />
+            <property role="TrG5h" value="ext" />
           </node>
         </node>
       </node>
@@ -13244,16 +12993,6 @@
         </node>
       </node>
     </node>
-    <node concept="3AqmO8" id="4JRKVCvfdUU" role="8PkJo">
-      <property role="TrG5h" value="union" />
-      <property role="3AqDzJ" value="2" />
-      <node concept="1zAUYm" id="4MEOIDFUy1B" role="1zAUyy">
-        <property role="TrG5h" value="UnionType" />
-      </node>
-      <node concept="1zAUYm" id="4MEOIDFUy1D" role="1zAUyy">
-        <property role="TrG5h" value="Components" />
-      </node>
-    </node>
     <node concept="1nLNMY" id="12QmIo_7snI" role="1nK1Vg">
       <property role="TrG5h" value="lub_null_any" />
       <node concept="3clFbS" id="12QmIo_7snJ" role="1nLNMH">
@@ -13563,15 +13302,20 @@
             <node concept="0eUR_" id="7lt0LtPBjTc" role="0UC6o">
               <node concept="3NuqgR" id="4nIWweBDU34" role="0eVf_">
                 <node concept="aZer4" id="2q0gzCFHpC6" role="3XD1gS">
-                  <property role="TrG5h" value="SubPathsL" />
+                  <property role="TrG5h" value="PathsLeft" />
                 </node>
                 <node concept="aZer4" id="2q0gzCFHpC9" role="3XD1gS">
-                  <property role="TrG5h" value="SubPathsR" />
+                  <property role="TrG5h" value="PathsRight" />
                 </node>
                 <node concept="aZer4" id="4JRKVCvg6UN" role="3XD1gS">
+                  <property role="TrG5h" value="LubClassifiers" />
+                </node>
+                <node concept="aZer4" id="2rIdnPwka2M" role="3XD1gS">
                   <property role="TrG5h" value="LubComponents" />
                 </node>
               </node>
+            </node>
+            <node concept="0eUR_" id="2rIdnPwkae1" role="0UC6o">
               <node concept="3NuqgR" id="1_2bK$p0mr9" role="0eVf_">
                 <node concept="aZer4" id="1_2bK$p0mra" role="3XD1gS">
                   <property role="TrG5h" value="Left" />
@@ -13580,7 +13324,7 @@
                   <property role="TrG5h" value="Right" />
                 </node>
                 <node concept="aZer4" id="1_2bK$p0nZj" role="3XD1gS">
-                  <property role="TrG5h" value="LUB" />
+                  <property role="TrG5h" value="Lub" />
                 </node>
               </node>
             </node>
@@ -13591,7 +13335,7 @@
                   <node concept="3Aqt3T" id="2q0gzCFHfJM" role="3I6s78">
                     <ref role="3AqCNq" node="2q0gzCFHesp" resolve="lub" />
                     <node concept="a7P8L" id="2q0gzCFHsS9" role="3AunhB">
-                      <ref role="a7OzE" node="1_2bK$p0nZj" resolve="LUB" />
+                      <ref role="a7OzE" node="1_2bK$p0nZj" resolve="Lub" />
                     </node>
                     <node concept="a7P8L" id="2q0gzCFHfK2" role="3AunhB">
                       <ref role="a7OzE" node="1_2bK$p0mra" resolve="Left" />
@@ -13625,11 +13369,16 @@
               <node concept="3I6sU6" id="4nIWweBDUgW" role="3Ip0Jz">
                 <node concept="3IrJb3" id="4nIWweBDUgX" role="3I6sU7">
                   <node concept="3clFbS" id="2q0gzCFGWsl" role="3IrJb0">
+                    <node concept="3SKdUt" id="2rIdnPv_4wF" role="3cqZAp">
+                      <node concept="3SKdUq" id="2rIdnPv_4wH" role="3SKWNk">
+                        <property role="3SKdUp" value="FIXME!!!" />
+                      </node>
+                    </node>
                     <node concept="3Aqczg" id="2q0gzCFHqGs" role="3cqZAp">
                       <node concept="3Aqt3T" id="2q0gzCFHqGU" role="3Aqpz8">
-                        <ref role="3AqCNq" node="2q0gzCFHojT" resolve="subtypePaths" />
+                        <ref role="3AqCNq" node="2rIdnPuJSDR" resolve="subclassPaths" />
                         <node concept="a7P8L" id="2q0gzCFHqH4" role="3AunhB">
-                          <ref role="a7OzE" node="2q0gzCFHpC6" resolve="SubPathsL" />
+                          <ref role="a7OzE" node="2q0gzCFHpC6" resolve="PathsLeft" />
                         </node>
                         <node concept="a7P8L" id="7nkyKX6YuBw" role="3AunhB">
                           <ref role="a7OzE" node="1_2bK$p0mra" resolve="Left" />
@@ -13638,9 +13387,9 @@
                     </node>
                     <node concept="3Aqczg" id="2q0gzCFHqHe" role="3cqZAp">
                       <node concept="3Aqt3T" id="2q0gzCFHqHf" role="3Aqpz8">
-                        <ref role="3AqCNq" node="2q0gzCFHojT" resolve="subtypePaths" />
+                        <ref role="3AqCNq" node="2rIdnPuJSDR" resolve="subclassPaths" />
                         <node concept="a7P8L" id="2q0gzCFHqHO" role="3AunhB">
-                          <ref role="a7OzE" node="2q0gzCFHpC9" resolve="SubPathsR" />
+                          <ref role="a7OzE" node="2q0gzCFHpC9" resolve="PathsRight" />
                         </node>
                         <node concept="a7P8L" id="7nkyKX6YuC1" role="3AunhB">
                           <ref role="a7OzE" node="1_2bK$p0mzY" resolve="Right" />
@@ -13648,112 +13397,26 @@
                       </node>
                     </node>
                     <node concept="3clFbH" id="6BU$YTNHdPh" role="3cqZAp" />
-                    <node concept="3Aqczg" id="2q0gzCFHkxj" role="3cqZAp">
-                      <node concept="3wWvb2" id="2q0gzCFHkxp" role="3Aqpz8">
-                        <node concept="2YIFZM" id="20Ay2Vfc3qj" role="3wWo3s">
-                          <ref role="37wK5l" node="5H6hZahmloU" resolve="findLub" />
-                          <ref role="1Pybhc" node="5H6hZahmlon" resolve="LubSolver" />
-                          <node concept="1nq8_$" id="49obaclfijA" role="37wK5m">
-                            <node concept="a7P8L" id="2p$DpYKVP$r" role="1nq8_t">
-                              <ref role="a7OzE" node="4JRKVCvg6UN" resolve="LubComponents" />
+                    <node concept="3Aqczg" id="2rIdnPtx_3e" role="3cqZAp">
+                      <node concept="3A8Hvi" id="2rIdnPtx_38" role="3Aqpz8">
+                        <node concept="a7P8L" id="2rIdnPtx_4g" role="3A8wtg">
+                          <ref role="a7OzE" node="4JRKVCvg6UN" resolve="LubClassifiers" />
+                        </node>
+                        <node concept="HKQnh" id="2rIdnPtx_9L" role="3A8w4Q">
+                          <node concept="2YIFZM" id="2rIdnPtx_ae" role="HKQng">
+                            <ref role="37wK5l" node="5H6hZahmloU" resolve="findRawLub" />
+                            <ref role="1Pybhc" node="5H6hZahmlon" resolve="LubHelper" />
+                            <node concept="1TmgYN" id="2rIdnPtx_cM" role="37wK5m">
+                              <node concept="1nq8_$" id="2rIdnPtx_dT" role="1Tms7$">
+                                <node concept="a7P8L" id="2rIdnPtx_dR" role="1nq8_t">
+                                  <ref role="a7OzE" node="2q0gzCFHpC6" resolve="PathsLeft" />
+                                </node>
+                              </node>
                             </node>
-                          </node>
-                          <node concept="1nq8_$" id="49obaclfijV" role="37wK5m">
-                            <node concept="a7P8L" id="2p$DpYKVP$t" role="1nq8_t">
-                              <ref role="a7OzE" node="2q0gzCFHpC6" resolve="SubPathsL" />
-                            </node>
-                          </node>
-                          <node concept="1nq8_$" id="49obaclfiiJ" role="37wK5m">
-                            <node concept="a7P8L" id="2p$DpYKVP$v" role="1nq8_t">
-                              <ref role="a7OzE" node="2q0gzCFHpC9" resolve="SubPathsR" />
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
-                    <node concept="3clFbH" id="5SPO52V$6JR" role="3cqZAp" />
-                    <node concept="3Aqczg" id="4JRKVCvg4z3" role="3cqZAp">
-                      <node concept="3Aqt3T" id="4JRKVCvg4_G" role="3Aqpz8">
-                        <ref role="3AqCNq" node="4JRKVCvfdUU" resolve="union" />
-                        <node concept="a7P8L" id="4JRKVCvg6Vc" role="3AunhB">
-                          <ref role="a7OzE" node="1_2bK$p0nZj" resolve="LUB" />
-                        </node>
-                        <node concept="a7P8L" id="4JRKVCvg6V8" role="3AunhB">
-                          <ref role="a7OzE" node="4JRKVCvg6UN" resolve="LubComponents" />
-                        </node>
-                      </node>
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-        </node>
-      </node>
-    </node>
-    <node concept="1nLNMY" id="12QmIo_7so2" role="1nK1Vg">
-      <property role="TrG5h" value="union_singleton" />
-      <node concept="3clFbS" id="12QmIo_7so3" role="1nLNMH">
-        <node concept="1nLNNL" id="12QmIo_7so4" role="3cqZAp">
-          <node concept="1nLNMm" id="12QmIo_7so5" role="1nLNNK">
-            <node concept="0eUR_" id="7lt0LtPBjT_" role="0UC6o">
-              <node concept="3NuqgR" id="7nkyKX7jH32" role="0eVf_">
-                <node concept="aZer4" id="7nkyKX7jH33" role="3XD1gS">
-                  <property role="TrG5h" value="UnionType" />
-                </node>
-                <node concept="aZer4" id="7nkyKX7jH3z" role="3XD1gS">
-                  <property role="TrG5h" value="Components" />
-                </node>
-              </node>
-            </node>
-            <node concept="3Aq93q" id="4JRKVCvenZ1" role="1nLNMb">
-              <property role="3ArMco" value="false" />
-              <node concept="3I6sU6" id="4nIWweBDUkK" role="3Ip0Jz">
-                <node concept="3I6s7M" id="4nIWweBDUkL" role="3I6sU7">
-                  <node concept="3Aqt3T" id="4JRKVCvffhp" role="3I6s78">
-                    <ref role="3AqCNq" node="4JRKVCvfdUU" resolve="union" />
-                    <node concept="a7P8L" id="4JRKVCvfgp8" role="3AunhB">
-                      <ref role="a7OzE" node="7nkyKX7jH33" resolve="UnionType" />
-                    </node>
-                    <node concept="a7P8L" id="4nb5svj5I4" role="3AunhB">
-                      <ref role="a7OzE" node="7nkyKX7jH3z" resolve="Components" />
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-            <node concept="3Aq9_M" id="4JRKVCvfhwF" role="1nLNMa">
-              <node concept="3I6sU6" id="4nIWweBDUlj" role="3Ip0Jz">
-                <node concept="3IrJb3" id="4nIWweBDUlk" role="3I6sU7">
-                  <node concept="3clFbS" id="4JRKVCvfhwG" role="3IrJb0">
-                    <node concept="3SKdUt" id="4hh8ocmqVh2" role="3cqZAp">
-                      <node concept="3SKdUq" id="4hh8ocmqVhk" role="3SKWNk">
-                        <property role="3SKdUp" value="using the fact that LubType must be unbound here" />
-                      </node>
-                    </node>
-                    <node concept="3SKdUt" id="4hh8ocmqVhD" role="3cqZAp">
-                      <node concept="3SKdUq" id="4hh8ocmqVhX" role="3SKWNk">
-                        <property role="3SKdUp" value="otherwise we'd have to use a tmp var, which is not supported" />
-                      </node>
-                    </node>
-                    <node concept="3Aqczg" id="4hh8ocmqVgu" role="3cqZAp">
-                      <node concept="2aLmEc" id="4hh8ocmqVgs" role="3Aqpz8">
-                        <node concept="a7P8L" id="4hh8ocmqVgH" role="2aLmnP">
-                          <ref role="a7OzE" node="7nkyKX7jH33" resolve="UnionType" />
-                        </node>
-                      </node>
-                    </node>
-                    <node concept="3Aqczg" id="7LZcKzBwTIe" role="3cqZAp">
-                      <node concept="3A8Hvi" id="7LZcKzBwTIf" role="3Aqpz8">
-                        <node concept="a7P8L" id="7LZcKzBwTIo" role="3A8wtg">
-                          <ref role="a7OzE" node="7nkyKX7jH3z" resolve="Components" />
-                        </node>
-                        <node concept="HAVWr" id="5WBVN_MKq4m" role="3A8w4Q">
-                          <node concept="1oi5UN" id="7LZcKzBwTJv" role="HAVW7">
-                            <node concept="22Ky0T" id="7LZcKzBwTJw" role="lGtFl">
-                              <node concept="1nq8_$" id="49obaclfijc" role="22Ky0K">
-                                <node concept="a7P8L" id="7LZcKzBwTJy" role="1nq8_t">
-                                  <ref role="a7OzE" node="7nkyKX7jH33" resolve="UnionType" />
+                            <node concept="1TmgYN" id="2rIdnPtx_eV" role="37wK5m">
+                              <node concept="1nq8_$" id="2rIdnPtx_fz" role="1Tms7$">
+                                <node concept="a7P8L" id="2rIdnPtx_fx" role="1nq8_t">
+                                  <ref role="a7OzE" node="2q0gzCFHpC9" resolve="PathsRight" />
                                 </node>
                               </node>
                             </node>
@@ -13761,23 +13424,31 @@
                         </node>
                       </node>
                     </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-            <node concept="3Aq9E8" id="4JRKVCvenYP" role="1nLNMd">
-              <node concept="3I6sU6" id="4nIWweBDUmA" role="3Ip0Jz">
-                <node concept="3I6s7M" id="4nIWweBDUmB" role="3I6sU7">
-                  <node concept="3A8Hvi" id="7LZcKzBwTKG" role="3I6s78">
-                    <node concept="a7P8L" id="7LZcKzBwTKP" role="3A8wtg">
-                      <ref role="a7OzE" node="7nkyKX7jH3z" resolve="Components" />
+                    <node concept="3clFbH" id="2rIdnPwjYAF" role="3cqZAp" />
+                    <node concept="3Aqczg" id="2rIdnPwk9Ue" role="3cqZAp">
+                      <node concept="3Aqt3T" id="2rIdnPwk9Uc" role="3Aqpz8">
+                        <ref role="3AqCNq" node="2rIdnPwk8q4" resolve="toRawTypes" />
+                        <node concept="a7P8L" id="2rIdnPwkahy" role="3AunhB">
+                          <ref role="a7OzE" node="2rIdnPwka2M" resolve="LubComponents" />
+                        </node>
+                        <node concept="a7P8L" id="2rIdnPwkakO" role="3AunhB">
+                          <ref role="a7OzE" node="4JRKVCvg6UN" resolve="LubClassifiers" />
+                        </node>
+                      </node>
                     </node>
-                    <node concept="HAVWr" id="5WBVN_MKq4n" role="3A8w4Q">
-                      <node concept="1oi5UN" id="7LZcKzBwTKL" role="HAVW7">
-                        <node concept="22Ky0T" id="7LZcKzBwTKM" role="lGtFl">
-                          <node concept="1nq8_$" id="49obaclfiiR" role="22Ky0K">
-                            <node concept="a7P8L" id="7LZcKzBwTKO" role="1nq8_t">
-                              <ref role="a7OzE" node="7nkyKX7jH33" resolve="UnionType" />
+                    <node concept="3Aqczg" id="6N2bvv_fHz2" role="3cqZAp">
+                      <node concept="3A8Hvi" id="6N2bvv_fHyW" role="3Aqpz8">
+                        <node concept="a7P8L" id="6N2bvv_fH$q" role="3A8wtg">
+                          <ref role="a7OzE" node="1_2bK$p0nZj" resolve="Lub" />
+                        </node>
+                        <node concept="ns1u0" id="6N2bvv_fH$S" role="3A8w4Q">
+                          <ref role="ns1xF" node="6EY0p2zs5$T" resolve="intersectionType" />
+                          <node concept="nsMwS" id="6N2bvv_hHOk" role="ns1xD">
+                            <ref role="nsMwP" node="6N2bvv_fHBX" resolve="parameter" />
+                            <node concept="1nq8_$" id="6N2bvv_hHPg" role="nsMwV">
+                              <node concept="a7P8L" id="2rIdnPwkamu" role="1nq8_t">
+                                <ref role="a7OzE" node="2rIdnPwka2M" resolve="LubComponents" />
+                              </node>
                             </node>
                           </node>
                         </node>
@@ -14393,6 +14064,342 @@
     <property role="TrG5h" value="ClassifierType" />
     <property role="3GE5qa" value="type" />
     <ref role="2YbDB9" node="6qJjpCjlmVR" resolve="CheckAll" />
+    <node concept="3AqmO8" id="2rIdnPwk1G5" role="8PkJo">
+      <property role="TrG5h" value="createRaw" />
+      <node concept="1zAUYm" id="2rIdnPwk1O8" role="1zAUyy">
+        <property role="TrG5h" value="type" />
+      </node>
+      <node concept="1zAUYm" id="2rIdnPwk1PK" role="1zAUyy">
+        <property role="TrG5h" value="cls" />
+      </node>
+    </node>
+    <node concept="3AqmO8" id="2rIdnPwk8q4" role="8PkJo">
+      <property role="TrG5h" value="toRawTypes" />
+      <node concept="1zAUYm" id="2rIdnPwk8q5" role="1zAUyy">
+        <property role="TrG5h" value="rawtypes" />
+      </node>
+      <node concept="1zAUYm" id="2rIdnPwk8q6" role="1zAUyy">
+        <property role="TrG5h" value="classifiers" />
+      </node>
+    </node>
+    <node concept="3AqmO8" id="2rIdnPwjZrG" role="8PkJo">
+      <property role="TrG5h" value="toRawTypesRec" />
+      <node concept="1zAUYm" id="2rIdnPwjZCw" role="1zAUyy">
+        <property role="TrG5h" value="rawtypeslist" />
+      </node>
+      <node concept="1zAUYm" id="2rIdnPwjZCx" role="1zAUyy">
+        <property role="TrG5h" value="classifiers" />
+      </node>
+    </node>
+    <node concept="1nLNMY" id="2rIdnPwjZHp" role="1nK1Vg">
+      <property role="TrG5h" value="createRawTypes" />
+      <node concept="3clFbS" id="2rIdnPwjZHq" role="1nLNMH">
+        <node concept="1nLNNL" id="2rIdnPwk8_F" role="3cqZAp">
+          <node concept="1nLNMm" id="2rIdnPwk8_H" role="1nLNNK">
+            <node concept="3Aq93q" id="2rIdnPwk8CI" role="1nLNMb">
+              <node concept="3I6sU6" id="2rIdnPwk8CJ" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPwk8Ep" role="3I6sU7">
+                  <node concept="3Aqt3T" id="2rIdnPwk8Eo" role="3I6s78">
+                    <ref role="3AqCNq" node="2rIdnPwk8q4" resolve="toRawTypes" />
+                    <node concept="a7P8L" id="2rIdnPwnalW" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPwk0mQ" resolve="TListNode" />
+                    </node>
+                    <node concept="a7P8L" id="2rIdnPwk9e7" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPwk03h" resolve="ClsList" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="0eUR_" id="2rIdnPwk8Jr" role="0UC6o">
+              <node concept="3NuqgR" id="2rIdnPwk8L3" role="0eVf_">
+                <node concept="aZer4" id="2rIdnPwk0mQ" role="3XD1gS">
+                  <property role="TrG5h" value="TListNode" />
+                </node>
+                <node concept="aZer4" id="2rIdnPwk03h" role="3XD1gS">
+                  <property role="TrG5h" value="ClsList" />
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="2rIdnPwk9ho" role="1nLNMd">
+              <node concept="3I6sU6" id="2rIdnPwk9hp" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPwk9ml" role="3I6sU7">
+                  <node concept="3Aqt3T" id="2rIdnPwk9mk" role="3I6s78">
+                    <ref role="3AqCNq" node="2rIdnPwjZrG" resolve="toRawTypesRec" />
+                    <node concept="a7P8L" id="2rIdnPwk9pA" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPwk0mQ" resolve="TListNode" />
+                    </node>
+                    <node concept="a7P8L" id="2rIdnPwk9ri" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPwk03h" resolve="ClsList" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="2rIdnPwjZUH" role="3cqZAp" />
+        <node concept="1nLNNL" id="2rIdnPwjZYd" role="3cqZAp">
+          <node concept="1nLNMm" id="2rIdnPwjZYf" role="1nLNNK">
+            <node concept="3Aq93q" id="2rIdnPwjZZX" role="1nLNMb">
+              <node concept="3I6sU6" id="2rIdnPwjZZY" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPwk087" role="3I6sU7">
+                  <node concept="3Aqt3T" id="2rIdnPwk086" role="3I6s78">
+                    <ref role="3AqCNq" node="2rIdnPwjZrG" resolve="toRawTypesRec" />
+                    <node concept="a7P8L" id="2rIdnPwk0zD" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPwk0mQ" resolve="TListNode" />
+                    </node>
+                    <node concept="1HFMs5" id="2rIdnPwk0hS" role="3AunhB">
+                      <node concept="a7P8L" id="2rIdnPwk0hN" role="1uarlU">
+                        <ref role="a7OzE" node="2rIdnPwk03h" resolve="ClsList" />
+                      </node>
+                      <node concept="HAVWr" id="2rIdnPwk0jA" role="1uarlW" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="2rIdnPwk67z" role="1nLNMd">
+              <node concept="3I6sU6" id="2rIdnPwk67$" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPwk69g" role="3I6sU7">
+                  <node concept="3A8Hvi" id="2rIdnPwk69d" role="3I6s78">
+                    <node concept="a7P8L" id="2rIdnPwk6aV" role="3A8wtg">
+                      <ref role="a7OzE" node="2rIdnPwk0mQ" resolve="TListNode" />
+                    </node>
+                    <node concept="Hz6ka" id="2rIdnPwk7Ye" role="3A8w4Q">
+                      <node concept="KCUsM" id="2rIdnPwk7ZU" role="Hz6kd" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="2rIdnPwjZUM" role="3cqZAp" />
+        <node concept="1nLNNL" id="2rIdnPwk0Gd" role="3cqZAp">
+          <node concept="1nLNMm" id="2rIdnPwk0Gf" role="1nLNNK">
+            <node concept="3Aq93q" id="2rIdnPwk0Ib" role="1nLNMb">
+              <node concept="3I6sU6" id="2rIdnPwk0Ic" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPwk0JQ" role="3I6sU7">
+                  <node concept="3Aqt3T" id="2rIdnPwk0JP" role="3I6s78">
+                    <ref role="3AqCNq" node="2rIdnPwjZrG" resolve="toRawTypesRec" />
+                    <node concept="a7P8L" id="2rIdnPwk610" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPwk0mQ" resolve="TListNode" />
+                    </node>
+                    <node concept="1HFMs5" id="2rIdnPwk0Qr" role="3AunhB">
+                      <node concept="a7P8L" id="2rIdnPwk0OK" role="1uarlU">
+                        <ref role="a7OzE" node="2rIdnPwk03h" resolve="ClsList" />
+                      </node>
+                      <node concept="HAVWr" id="2rIdnPwk0S9" role="1uarlW">
+                        <node concept="1oi5UN" id="2rIdnPwk0Vq" role="HAVW7">
+                          <node concept="22Ky0T" id="2rIdnPwk0X3" role="lGtFl">
+                            <node concept="1nq8_$" id="2rIdnPwk179" role="22Ky0K">
+                              <node concept="a7P8L" id="2rIdnPwk178" role="1nq8_t">
+                                <ref role="a7OzE" node="2rIdnPwk13T" resolve="ClsHead" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="2IllgU" id="2rIdnPwk1dI" role="HAVW7" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="0eUR_" id="2rIdnPwk12g" role="0UC6o">
+              <node concept="3NuqgR" id="2rIdnPwk13S" role="0eVf_">
+                <node concept="aZer4" id="2rIdnPwk57T" role="3XD1gS">
+                  <property role="TrG5h" value="T" />
+                </node>
+                <node concept="aZer4" id="2rIdnPwk13T" role="3XD1gS">
+                  <property role="TrG5h" value="ClsHead" />
+                </node>
+              </node>
+              <node concept="3NuqgR" id="2rIdnPwk5rM" role="0eVf_">
+                <node concept="aZer4" id="2rIdnPwk5rN" role="3XD1gS">
+                  <property role="TrG5h" value="ClsTail" />
+                </node>
+                <node concept="aZer4" id="2rIdnPwk71p" role="3XD1gS">
+                  <property role="TrG5h" value="TTailListNode" />
+                </node>
+                <node concept="3uibUv" id="2rIdnPwk5tv" role="3vLBG7">
+                  <ref role="3uigEE" to="6exd:3OPtF03lco4" resolve="ListNode" />
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="2rIdnPwk1ao" role="1nLNMd">
+              <node concept="3I6sU6" id="2rIdnPwk1ap" role="3Ip0Jz">
+                <node concept="3IrJb3" id="2rIdnPwk1fr" role="3I6sU7">
+                  <node concept="3clFbS" id="2rIdnPwk1fs" role="3IrJb0">
+                    <node concept="3Aqczg" id="2rIdnPwk6J6" role="3cqZAp">
+                      <node concept="3A8Hvi" id="2rIdnPwk6J0" role="3Aqpz8">
+                        <node concept="a7P8L" id="2rIdnPwk6L6" role="3A8wtg">
+                          <ref role="a7OzE" node="2rIdnPwk0mQ" resolve="TListNode" />
+                        </node>
+                        <node concept="Hz6ka" id="2rIdnPwk84L" role="3A8w4Q">
+                          <node concept="KCUsM" id="2rIdnPwk86t" role="Hz6kd">
+                            <node concept="1oi5UN" id="2rIdnPwk8bn" role="KCVpo">
+                              <node concept="22Ky0T" id="2rIdnPwk8d1" role="lGtFl">
+                                <node concept="1nq8_$" id="2rIdnPwk8eE" role="22Ky0K">
+                                  <node concept="a7P8L" id="2rIdnPwk8eD" role="1nq8_t">
+                                    <ref role="a7OzE" node="2rIdnPwk57T" resolve="T" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                            <node concept="KCUsM" id="2rIdnPwk8gj" role="KCVpo">
+                              <node concept="22Ky0T" id="2rIdnPwk8i0" role="lGtFl">
+                                <node concept="1nq8_$" id="2rIdnPwk8jD" role="22Ky0K">
+                                  <node concept="a7P8L" id="2rIdnPwk8jC" role="1nq8_t">
+                                    <ref role="a7OzE" node="2rIdnPwk71p" resolve="TTailListNode" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3Aqczg" id="2rIdnPwk54C" role="3cqZAp">
+                      <node concept="3Aqt3T" id="2rIdnPwk54B" role="3Aqpz8">
+                        <ref role="3AqCNq" node="2rIdnPwk1G5" resolve="createRaw" />
+                        <node concept="a7P8L" id="2rIdnPwk5bb" role="3AunhB">
+                          <ref role="a7OzE" node="2rIdnPwk57T" resolve="T" />
+                        </node>
+                        <node concept="a7P8L" id="2rIdnPwk5cP" role="3AunhB">
+                          <ref role="a7OzE" node="2rIdnPwk13T" resolve="ClsHead" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3Aqczg" id="2rIdnPwk5hR" role="3cqZAp">
+                      <node concept="3A8Hvi" id="2rIdnPwk5hL" role="3Aqpz8">
+                        <node concept="a7P8L" id="2rIdnPwk5jA" role="3A8wtg">
+                          <ref role="a7OzE" node="2rIdnPwk03h" resolve="ClsList" />
+                        </node>
+                        <node concept="HAVWr" id="2rIdnPwk5lf" role="3A8w4Q">
+                          <node concept="2IllgU" id="2rIdnPwk5mU" role="HAVW7" />
+                          <node concept="1oi5UN" id="2rIdnPwk5yj" role="HAVW7">
+                            <node concept="22Ky0T" id="2rIdnPwk5zX" role="lGtFl">
+                              <node concept="1nq8_$" id="2rIdnPwk5_A" role="22Ky0K">
+                                <node concept="a7P8L" id="2rIdnPwk5__" role="1nq8_t">
+                                  <ref role="a7OzE" node="2rIdnPwk5rN" resolve="ClsTail" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3Aqczg" id="2rIdnPwk5D6" role="3cqZAp">
+                      <node concept="3Aqt3T" id="2rIdnPwk5D4" role="3Aqpz8">
+                        <ref role="3AqCNq" node="2rIdnPwjZrG" resolve="toRawTypesRec" />
+                        <node concept="a7P8L" id="2rIdnPwk8yn" role="3AunhB">
+                          <ref role="a7OzE" node="2rIdnPwk71p" resolve="TTailListNode" />
+                        </node>
+                        <node concept="HAVWr" id="2rIdnPwk5LV" role="3AunhB">
+                          <node concept="1oi5UN" id="2rIdnPwk5N_" role="HAVW7">
+                            <node concept="22Ky0T" id="2rIdnPwk5Pd" role="lGtFl">
+                              <node concept="1nq8_$" id="2rIdnPwk5QQ" role="22Ky0K">
+                                <node concept="a7P8L" id="2rIdnPwk5QP" role="1nq8_t">
+                                  <ref role="a7OzE" node="2rIdnPwk5rN" resolve="ClsTail" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="1nLNMY" id="2rIdnPwk1sr" role="1nK1Vg">
+      <property role="TrG5h" value="createRaw" />
+      <node concept="3clFbS" id="2rIdnPwk1ss" role="1nLNMH">
+        <node concept="1nLNNL" id="2rIdnPwk211" role="3cqZAp">
+          <node concept="1nLNMm" id="2rIdnPwk212" role="1nLNNK">
+            <node concept="3Aq93q" id="2rIdnPwk22F" role="1nLNMb">
+              <node concept="3I6sU6" id="2rIdnPwk22G" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPwk25Z" role="3I6sU7">
+                  <node concept="3Aqt3T" id="2rIdnPwk25Y" role="3I6s78">
+                    <ref role="3AqCNq" node="2rIdnPwk1G5" resolve="createRaw" />
+                    <node concept="a7P8L" id="2rIdnPwk2fJ" role="3AunhB">
+                      <ref role="a7OzE" node="2rIdnPwk29h" resolve="T" />
+                    </node>
+                    <node concept="1HFMs5" id="2rIdnPwk2j6" role="3AunhB">
+                      <node concept="a7P8L" id="2rIdnPwk2j1" role="1uarlU">
+                        <ref role="a7OzE" node="2rIdnPwk2cw" resolve="Cls" />
+                      </node>
+                      <node concept="Hz6ka" id="2rIdnPwk2kO" role="1uarlW">
+                        <node concept="1oi5XN" id="2rIdnPwk2mw" role="Hz6kd">
+                          <node concept="22Ky0T" id="2rIdnPwk2o9" role="lGtFl">
+                            <node concept="2OqwBi" id="2rIdnPwk2Zx" role="22Ky0K">
+                              <node concept="3A2sRY" id="2rIdnPwk2pL" role="2Oq$k0">
+                                <ref role="3A2yKK" node="2rIdnPwk1UA" resolve="cls" />
+                              </node>
+                              <node concept="iZEcu" id="2rIdnPwk4fF" role="2OqNvi" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="0eUR_" id="2rIdnPwk24m" role="0UC6o">
+              <node concept="3NuqgR" id="2rIdnPwk29g" role="0eVf_">
+                <node concept="aZer4" id="2rIdnPwk29h" role="3XD1gS">
+                  <property role="TrG5h" value="T" />
+                </node>
+                <node concept="aZer4" id="2rIdnPwk2cw" role="3XD1gS">
+                  <property role="TrG5h" value="Cls" />
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="2rIdnPwk4iU" role="1nLNMd">
+              <node concept="3I6sU6" id="2rIdnPwk4iV" role="3Ip0Jz">
+                <node concept="3I6s7M" id="2rIdnPwk4ZE" role="3I6sU7">
+                  <node concept="B_ONY" id="2rIdnPwk4me" role="3I6s78">
+                    <ref role="17QRF" node="7XRk2O3zfxt" resolve="classifierType" />
+                    <node concept="a7P8L" id="2rIdnPwk4nU" role="B_OMz">
+                      <ref role="a7OzE" node="2rIdnPwk29h" resolve="T" />
+                    </node>
+                    <node concept="1Q7qz5" id="2rIdnPwk4r9" role="150vd">
+                      <node concept="1Q7q5z" id="2rIdnPwk4w1" role="1Q7qz4">
+                        <ref role="1Q7tcy" node="7XRk2O3zfpB" resolve="cls1" />
+                        <node concept="3A2sRY" id="2rIdnPwk4zh" role="1KxKwY">
+                          <ref role="3A2yKK" node="2rIdnPwk1UA" resolve="cls" />
+                        </node>
+                      </node>
+                      <node concept="1Q7q5z" id="2rIdnPwk4$U" role="1Q7qz4">
+                        <ref role="1Q7tcy" node="7XRk2O3zfvv" resolve="arguments" />
+                        <node concept="2ShNRf" id="2rIdnPwk4Cc" role="1KxKwY">
+                          <node concept="2T8Vx0" id="2rIdnPwk4Wo" role="2ShVmc">
+                            <node concept="2I9FWS" id="2rIdnPwk4Wq" role="2T96Bj" />
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2t___k" id="2rIdnPwk1U_" role="1nLNMg">
+        <ref role="2t_S0q" to="tpee:g7pOWCK" resolve="Classifier" />
+        <node concept="3A20r5" id="2rIdnPwk1UA" role="2t_VXX">
+          <property role="TrG5h" value="cls" />
+        </node>
+      </node>
+    </node>
     <node concept="1nLNMY" id="12QmIo_7shg" role="1nK1Vg">
       <property role="TrG5h" value="upperBoudType" />
       <node concept="3clFbS" id="12QmIo_7shh" role="1nLNMH">
@@ -16534,19 +16541,42 @@
                     </node>
                     <node concept="ns1u0" id="6EY0p2zs5AN" role="3A8w4Q">
                       <ref role="ns1xF" node="6EY0p2zs5$T" resolve="intersectionType" />
-                      <node concept="nsMwS" id="6EY0p2zs5AP" role="ns1xD">
-                        <ref role="nsMwP" node="6EY0p2zs5$W" resolve="left" />
-                        <node concept="1nq8_$" id="6EY0p2zs5AV" role="nsMwV">
-                          <node concept="a7P8L" id="6EY0p2zs5AT" role="1nq8_t">
-                            <ref role="a7OzE" node="4nb5svismv" resolve="Left" />
-                          </node>
-                        </node>
-                      </node>
-                      <node concept="nsMwS" id="6EY0p2zs5AY" role="ns1xD">
-                        <ref role="nsMwP" node="6EY0p2zs5$X" resolve="right" />
-                        <node concept="1nq8_$" id="6EY0p2zs5B7" role="nsMwV">
-                          <node concept="a7P8L" id="6EY0p2zs5B5" role="1nq8_t">
-                            <ref role="a7OzE" node="4nb5svismC" resolve="Right" />
+                      <node concept="nsMwS" id="6N2bvv_fHE9" role="ns1xD">
+                        <ref role="nsMwP" node="6N2bvv_fHBX" resolve="parameter" />
+                        <node concept="1nq8_$" id="6N2bvv_fHGl" role="nsMwV">
+                          <node concept="HAVWr" id="6N2bvv_fHGj" role="1nq8_t">
+                            <node concept="1oi5UN" id="6N2bvv_fHJz" role="HAVW7">
+                              <node concept="22Ky0T" id="6N2bvv_fHK1" role="lGtFl">
+                                <node concept="1nq8_$" id="6N2bvv_fHKv" role="22Ky0K">
+                                  <node concept="a7P8L" id="6N2bvv_fHKu" role="1nq8_t">
+                                    <ref role="a7OzE" node="4nb5svismv" resolve="Left" />
+                                  </node>
+                                </node>
+                              </node>
+                              <node concept="22Ky0T" id="6N2bvv_fHLx" role="lGtFl">
+                                <node concept="1nq8_$" id="6N2bvv_fHLy" role="22Ky0K">
+                                  <node concept="a7P8L" id="6N2bvv_fHLz" role="1nq8_t">
+                                    <ref role="a7OzE" node="4nb5svismv" resolve="Left" />
+                                  </node>
+                                </node>
+                              </node>
+                              <node concept="22Ky0T" id="6N2bvv_fHKX" role="lGtFl">
+                                <node concept="1nq8_$" id="6N2bvv_fHKY" role="22Ky0K">
+                                  <node concept="a7P8L" id="6N2bvv_fHKZ" role="1nq8_t">
+                                    <ref role="a7OzE" node="4nb5svismv" resolve="Left" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                            <node concept="1oi5UN" id="6N2bvv_fHMJ" role="HAVW7">
+                              <node concept="22Ky0T" id="6N2bvv_fHNn" role="lGtFl">
+                                <node concept="1nq8_$" id="6N2bvv_fHNP" role="22Ky0K">
+                                  <node concept="a7P8L" id="6N2bvv_fHNO" role="1nq8_t">
+                                    <ref role="a7OzE" node="4nb5svismC" resolve="Right" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
                           </node>
                         </node>
                       </node>
@@ -17720,6 +17750,16 @@
     <node concept="3AqmO8" id="20Zoq4kTOFb" role="8PkJo">
       <property role="TrG5h" value="recoverAll" />
     </node>
+    <node concept="3AqmO8" id="6N2bvv_l2qf" role="8PkJo">
+      <property role="TrG5h" value="recoverList" />
+      <node concept="1zAUYm" id="6N2bvv_l2sV" role="1zAUyy">
+        <property role="TrG5h" value="nlist" />
+        <node concept="2I9FWS" id="6N2bvv_l2wu" role="3gTf24" />
+      </node>
+      <node concept="1zAUYm" id="6N2bvv_l2wW" role="1zAUyy">
+        <property role="TrG5h" value="terms" />
+      </node>
+    </node>
     <node concept="3AqmO8" id="35YJGAJTRng" role="8PkJo">
       <property role="TrG5h" value="expectType" />
       <node concept="1zAUYm" id="35YJGAJTRnn" role="1zAUyy">
@@ -20183,6 +20223,282 @@
         </node>
       </node>
     </node>
+    <node concept="1nLNMY" id="6N2bvv_l1A5" role="1nK1Vg">
+      <property role="TrG5h" value="recover_intersectionType" />
+      <node concept="3clFbS" id="6N2bvv_l1A6" role="1nLNMH">
+        <node concept="1nLNNL" id="6N2bvv_l1Xr" role="3cqZAp">
+          <node concept="1nLNMm" id="6N2bvv_l1Xt" role="1nLNNK">
+            <node concept="3Aq93q" id="6N2bvv_l1XW" role="1nLNMb">
+              <node concept="3I6sU6" id="6N2bvv_l1XX" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_l25A" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_l25_" role="3I6s78">
+                    <ref role="3AqCNq" node="6Qzc0KyJGJT" resolve="recover" />
+                    <node concept="a7P8L" id="6N2bvv_l266" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_l1YU" resolve="Node" />
+                    </node>
+                    <node concept="1HFMs5" id="6N2bvv_l277" role="3AunhB">
+                      <node concept="a7P8L" id="6N2bvv_l272" role="1uarlU">
+                        <ref role="a7OzE" node="6N2bvv_l24e" resolve="Type" />
+                      </node>
+                      <node concept="ns1u0" id="6N2bvv_l285" role="1uarlW">
+                        <ref role="ns1xF" node="6EY0p2zs5$T" resolve="intersectionType" />
+                        <node concept="nsMwS" id="6N2bvv_l28y" role="ns1xD">
+                          <ref role="nsMwP" node="6N2bvv_fHBX" resolve="parameter" />
+                          <node concept="1nq8_$" id="6N2bvv_l2aM" role="nsMwV">
+                            <node concept="a7P8L" id="6N2bvv_l2aK" role="1nq8_t">
+                              <ref role="a7OzE" node="6N2bvv_l29s" resolve="Param" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="0eUR_" id="6N2bvv_l1Ys" role="0UC6o">
+              <node concept="3NuqgR" id="6N2bvv_l1YT" role="0eVf_">
+                <node concept="aZer4" id="6N2bvv_l1YU" role="3XD1gS">
+                  <property role="TrG5h" value="Node" />
+                </node>
+                <node concept="3Tqbb2" id="6N2bvv_l20g" role="3vLBG7" />
+              </node>
+              <node concept="3NuqgR" id="6N2bvv_l9_y" role="0eVf_">
+                <node concept="aZer4" id="6N2bvv_l9_z" role="3XD1gS">
+                  <property role="TrG5h" value="Args" />
+                </node>
+                <node concept="2I9FWS" id="6N2bvv_l9AE" role="3vLBG7" />
+              </node>
+              <node concept="3NuqgR" id="6N2bvv_l24d" role="0eVf_">
+                <node concept="aZer4" id="6N2bvv_l24e" role="3XD1gS">
+                  <property role="TrG5h" value="Type" />
+                </node>
+                <node concept="aZer4" id="6N2bvv_l29s" role="3XD1gS">
+                  <property role="TrG5h" value="Param" />
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="6N2bvv_l2bG" role="1nLNMd">
+              <node concept="3I6sU6" id="6N2bvv_l2bH" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_om_a" role="3I6sU7">
+                  <node concept="3GeI9q" id="6N2bvv_om_4" role="3I6s78">
+                    <node concept="a7P8L" id="6N2bvv_om_S" role="3GeI8F">
+                      <ref role="a7OzE" node="6N2bvv_l9_z" resolve="Args" />
+                    </node>
+                    <node concept="HKQnh" id="6N2bvv_omAm" role="3GeI8D">
+                      <node concept="2ShNRf" id="6N2bvv_omAN" role="HKQng">
+                        <node concept="2T8Vx0" id="6N2bvv_onTf" role="2ShVmc">
+                          <node concept="2I9FWS" id="6N2bvv_onTh" role="2T96Bj" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="3I6s7M" id="6N2bvv_l9BZ" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_l9BX" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_l2qf" resolve="recoverList" />
+                    <node concept="a7P8L" id="6N2bvv_l9D2" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_l9_z" resolve="Args" />
+                    </node>
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+                <node concept="aZer4" id="6N2bvv_u3u7" role="3XD1gS">
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+                        <node concept="a7P8L" id="6N2bvv_mKFD" role="3AunhB">
+                          <ref role="a7OzE" node="6N2bvv_l1YU" resolve="Node" />
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+                                <ref role="a7OzE" node="6N2bvv_l2nb" resolve="Nodes" />
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+                            </node>
+                          </node>
+                          <node concept="TSZUe" id="6N2bvv_q03o" role="2OqNvi">
+                            <node concept="1TmgYN" id="6N2bvv_q03p" role="25WWJ7">
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+                        <node concept="a7P8L" id="6N2bvv_l9pS" role="3AunhB">
+                          <ref role="a7OzE" node="6N2bvv_l2nb" resolve="Nodes" />
+                        </node>
+                        <node concept="Hz6ka" id="2rIdnPwt6iQ" role="3AunhB">
+                          <node concept="KCUsM" id="2rIdnPwt6kC" role="Hz6kd">
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+                              <node concept="22Ky0T" id="2rIdnPwt6mi" role="lGtFl">
+                                <node concept="1nq8_$" id="2rIdnPwt6mj" role="22Ky0K">
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+                              </node>
+                            </node>
+                          </node>
+                        </node>
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+                    <node concept="a7P8L" id="6N2bvv_l2$$" role="3AunhB">
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+                      <node concept="Hz6ka" id="2rIdnPwt65e" role="1uarlW">
+                        <node concept="KCUsM" id="2rIdnPwt66U" role="Hz6kd">
+                          <node concept="1oi5UN" id="2rIdnPwt68z" role="KCVpo">
+                            <node concept="22Ky0T" id="2rIdnPwt68$" role="lGtFl">
+                              <node concept="1nq8_$" id="2rIdnPwt68_" role="22Ky0K">
+                                <node concept="a7P8L" id="2rIdnPwt68A" role="1nq8_t">
+                                  <ref role="a7OzE" node="6N2bvv_l2E6" resolve="T" />
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+                              </node>
+                            </node>
+                          </node>
+                          <node concept="KCUsM" id="2rIdnPwt6bX" role="KCVpo">
+                            <node concept="22Ky0T" id="2rIdnPwt6bY" role="lGtFl">
+                              <node concept="1nq8_$" id="2rIdnPwt6bZ" role="22Ky0K">
+                                <node concept="a7P8L" id="2rIdnPwt6c0" role="1nq8_t">
+                                  <ref role="a7OzE" node="6N2bvv_l2Kl" resolve="Tail" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="0eUR_" id="6N2bvv_l2me" role="0UC6o">
+              <node concept="3NuqgR" id="6N2bvv_l2mF" role="0eVf_">
+                <node concept="aZer4" id="6N2bvv_l2E6" role="3XD1gS">
+                  <property role="TrG5h" value="T" />
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+              </node>
+              <node concept="3NuqgR" id="6N2bvv_l2Kk" role="0eVf_">
+                <node concept="aZer4" id="6N2bvv_l2Kl" role="3XD1gS">
+                  <property role="TrG5h" value="Tail" />
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+                <node concept="3uibUv" id="6N2bvv_l2KW" role="3vLBG7">
+                  <ref role="3uigEE" to="6exd:3OPtF03lco4" resolve="ListNode" />
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+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
     <node concept="1nLNMY" id="12QmIo_7sgp" role="1nK1Vg">
       <property role="TrG5h" value="recover_catchall" />
       <node concept="3clFbS" id="12QmIo_7sgq" role="1nLNMH">
@@ -20260,135 +20576,54 @@
     </node>
   </node>
   <node concept="312cEu" id="3KV3FXk1fjd">
-    <property role="TrG5h" value="SubtypePathSolver" />
+    <property role="TrG5h" value="PathHelper" />
     <property role="3GE5qa" value="util" />
     <node concept="2tJIrI" id="3KV3FXk1fFS" role="jymVt" />
     <node concept="2YIFZL" id="3KV3FXk1fGe" role="jymVt">
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-          <ref role="3uigEE" to="bj13:~Logical" resolve="Logical" />
-        </node>
-      </node>
+      <property role="TrG5h" value="findPath" />
       <node concept="37vLTG" id="3KV3FXk1fGZ" role="3clF46">
-        <property role="TrG5h" value="fullPaths" />
-        <node concept="3uibUv" id="3kjrYXAxc1Y" role="1tU5fm">
-          <ref role="3uigEE" to="bj13:~Logical" resolve="Logical" />
+        <property role="TrG5h" value="allPaths" />
+        <node concept="3uibUv" id="2rIdnPtWlpm" role="1tU5fm">
+          <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
         </node>
       </node>
       <node concept="37vLTG" id="3KV3FXk1fHy" role="3clF46">
         <property role="TrG5h" value="startFrom" />
-        <node concept="3uibUv" id="3kjrYXAxcg7" role="1tU5fm">
-          <ref role="3uigEE" to="bj13:~Logical" resolve="Logical" />
+        <node concept="3uibUv" id="2rIdnPtWlpr" role="1tU5fm">
+          <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
         </node>
       </node>
-      <node concept="10P_77" id="3KV3FXk1j6w" role="3clF45" />
+      <node concept="3uibUv" id="2rIdnPtWlpd" role="3clF45">
+        <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
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       <node concept="3Tm1VV" id="3KV3FXk1fGh" role="1B3o_S" />
       <node concept="3clFbS" id="3KV3FXk1fGi" role="3clF47">
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+            <node concept="YS8fn" id="2rIdnPtXWLV" role="3cqZAp">
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@@ -20401,19 +20636,16 @@
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-                  <ref role="37wK5l" node="3KV3FXk1jky" resolve="SubtypePathSolver" />
-                  <node concept="37vLTw" id="3KV3FXk1kud" role="37wK5m">
-                    <ref role="3cqZAo" node="20Ay2Vfc3pX" resolve="sessionSolver" />
-                  </node>
+                  <ref role="37wK5l" node="3KV3FXk1jky" resolve="PathHelper" />
                 </node>
               </node>
               <node concept="liA8E" id="3KV3FXk1kue" role="2OqNvi">
                 <ref role="37wK5l" node="3KV3FXk1jPV" resolve="doFind" />
-                <node concept="37vLTw" id="3KV3FXk1kuf" role="37wK5m">
-                  <ref role="3cqZAo" node="3KV3FXk1h3U" resolve="fullPathVal" />
+                <node concept="37vLTw" id="2rIdnPtWlBx" role="37wK5m">
+                  <ref role="3cqZAo" node="3KV3FXk1fGZ" resolve="allPaths" />
                 </node>
-                <node concept="37vLTw" id="3KV3FXk1kug" role="37wK5m">
-                  <ref role="3cqZAo" node="3KV3FXk1iAk" resolve="startFromVal" />
+                <node concept="37vLTw" id="2rIdnPtWlN0" role="37wK5m">
+                  <ref role="3cqZAo" node="3KV3FXk1fHy" resolve="startFrom" />
                 </node>
               </node>
             </node>
@@ -20422,21 +20654,21 @@
         <node concept="3clFbH" id="3KV3FXk1jbh" role="3cqZAp" />
         <node concept="3clFbJ" id="3KV3FXk1kIP" role="3cqZAp">
           <node concept="3clFbS" id="3KV3FXk1kIR" role="3clFbx">
-            <node concept="3clFbF" id="5_6ImQZ8rNY" role="3cqZAp">
-              <node concept="2YIFZM" id="74q$MmRAZEV" role="3clFbG">
-                <ref role="37wK5l" node="5_6ImQZ8ja0" resolve="fail" />
-                <ref role="1Pybhc" node="5_6ImQZ8j9D" resolve="SolverUtil" />
-                <node concept="Xl_RD" id="5_6ImQZ8rO0" role="37wK5m">
-                  <property role="Xl_RC" value="could not find subtyping path" />
+            <node concept="YS8fn" id="2rIdnPtWm19" role="3cqZAp">
+              <node concept="2ShNRf" id="2rIdnPtWm1a" role="YScLw">
+                <node concept="1pGfFk" id="2rIdnPtWm1b" role="2ShVmc">
+                  <ref role="37wK5l" to="w7la:~EvaluationFailureException.&lt;init&gt;(java.lang.String)" resolve="EvaluationFailureException" />
+                  <node concept="3cpWs3" id="2rIdnPv4fyM" role="37wK5m">
+                    <node concept="Xl_RD" id="2rIdnPtWm1d" role="3uHU7B">
+                      <property role="Xl_RC" value="could not find path from " />
+                    </node>
+                    <node concept="37vLTw" id="2rIdnPv4fzf" role="3uHU7w">
+                      <ref role="3cqZAo" node="3KV3FXk1fHy" resolve="startFrom" />
+                    </node>
+                  </node>
                 </node>
               </node>
             </node>
-            <node concept="3cpWs6" id="5_6ImQZ8rO1" role="3cqZAp">
-              <node concept="3clFbT" id="5_6ImQZ8rO2" role="3cqZAk">
-                <property role="3clFbU" value="false" />
-              </node>
-            </node>
-            <node concept="3clFbH" id="3KV3FXk1lYT" role="3cqZAp" />
           </node>
           <node concept="22lmx$" id="5_6ImQYdpbz" role="3clFbw">
             <node concept="3clFbC" id="5_6ImQYdptn" role="3uHU7B">
@@ -20454,40 +20686,13 @@
               </node>
             </node>
           </node>
-          <node concept="9aQIb" id="3KV3FXk1lG1" role="9aQIa">
-            <node concept="3clFbS" id="3KV3FXk1lG2" role="9aQI4">
-              <node concept="3clFbF" id="3KV3FXk1m38" role="3cqZAp">
-                <node concept="2OqwBi" id="3KV3FXk1m39" role="3clFbG">
-                  <node concept="37vLTw" id="3KV3FXk1m3a" role="2Oq$k0">
-                    <ref role="3cqZAo" node="20Ay2Vfc3pX" resolve="sessionSolver" />
-                  </node>
-                  <node concept="liA8E" id="3KV3FXk1m3b" role="2OqNvi">
-                    <ref role="37wK5l" to="w7la:~SessionSolver.tell(jetbrains.mps.logic.reactor.program.AndItem,jetbrains.mps.logic.reactor.logical.LogicalContext):void" resolve="tell" />
-                    <node concept="2YIFZM" id="5jCHAT2itK8" role="37wK5m">
-                      <ref role="37wK5l" to="cxk7:5jCHAT2iqus" resolve="eq" />
-                      <ref role="1Pybhc" to="cxk7:3HJTsBn4kk_" resolve="EqualsPredicate" />
-                      <node concept="37vLTw" id="3KV3FXk1m3d" role="37wK5m">
-                        <ref role="3cqZAo" node="3KV3FXk1fGz" resolve="result" />
-                      </node>
-                      <node concept="2YIFZM" id="3KV3FXk1m8m" role="37wK5m">
-                        <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="AbstractSolver" />
-                        <ref role="37wK5l" node="5H6hZahoMly" resolve="buildResult" />
-                        <node concept="37vLTw" id="3KV3FXk1m3h" role="37wK5m">
-                          <ref role="3cqZAo" node="3KV3FXk1ku9" resolve="resultList" />
-                        </node>
-                      </node>
-                    </node>
-                    <node concept="37vLTw" id="5jCHAT2iu$S" role="37wK5m">
-                      <ref role="3cqZAo" node="5jCHAT2dL9L" resolve="NO_CONTEXT" />
-                    </node>
-                  </node>
-                </node>
-              </node>
-              <node concept="3cpWs6" id="3KV3FXk1m3k" role="3cqZAp">
-                <node concept="3clFbT" id="3KV3FXk1m3l" role="3cqZAk">
-                  <property role="3clFbU" value="true" />
-                </node>
-              </node>
+        </node>
+        <node concept="3cpWs6" id="2rIdnPtWm1M" role="3cqZAp">
+          <node concept="2YIFZM" id="2rIdnPtWm2f" role="3cqZAk">
+            <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="BaseHelper" />
+            <ref role="37wK5l" node="5H6hZahoMly" resolve="buildResult" />
+            <node concept="37vLTw" id="2rIdnPtWm2g" role="37wK5m">
+              <ref role="3cqZAo" node="3KV3FXk1ku9" resolve="resultList" />
             </node>
           </node>
         </node>
@@ -20557,7 +20762,7 @@
             <node concept="92FcH" id="3KV3FXk1ZuX" role="qph3F">
               <node concept="TZ5HA" id="3KV3FXk1ZuZ" role="2XjZqd" />
               <node concept="VXe0Z" id="3KV3FXk27va" role="92FcQ">
-                <ref role="VXe0S" node="5H6hZahmloU" resolve="findLub" />
+                <ref role="VXe0S" node="5H6hZahmloU" resolve="findRawLub" />
               </node>
             </node>
           </node>
@@ -20634,42 +20839,25 @@
             <property role="1dT_AB" value="" />
           </node>
         </node>
-        <node concept="TZ5HA" id="3kjrYXAsoeQ" role="TZ5H$">
-          <node concept="1dT_AC" id="3kjrYXAsoeR" role="1dT_Ay">
-            <property role="1dT_AB" value="" />
-          </node>
-        </node>
-        <node concept="TUZQ0" id="3kjrYXAsog8" role="3nqlJM">
-          <property role="TUZQ4" value="Logical&lt;TreeForm&gt;" />
-          <node concept="zr_55" id="3kjrYXAsogw" role="zr_5Q">
-            <ref role="zr_51" node="3KV3FXk1fGz" resolve="result" />
-          </node>
-        </node>
-        <node concept="TUZQ0" id="3kjrYXAsohL" role="3nqlJM">
-          <property role="TUZQ4" value="Logical&lt;TreeForm&gt;" />
-          <node concept="zr_55" id="3kjrYXAsoid" role="zr_5Q">
-            <ref role="zr_51" node="3KV3FXk1fGZ" resolve="fullPaths" />
-          </node>
-        </node>
-        <node concept="TUZQ0" id="3kjrYXAsojC" role="3nqlJM">
-          <property role="TUZQ4" value="Logical&lt;TreeForm&gt;" />
-          <node concept="zr_55" id="3kjrYXAsok6" role="zr_5Q">
-            <ref role="zr_51" node="3KV3FXk1fHy" resolve="startFrom" />
-          </node>
-        </node>
       </node>
     </node>
     <node concept="2tJIrI" id="3KV3FXk1fFX" role="jymVt" />
+    <node concept="3clFbW" id="3KV3FXk1jky" role="jymVt">
+      <node concept="3cqZAl" id="3KV3FXk1jk$" role="3clF45" />
+      <node concept="3Tmbuc" id="2rIdnPtU$gm" role="1B3o_S" />
+      <node concept="3clFbS" id="3KV3FXk1jkA" role="3clF47" />
+    </node>
+    <node concept="2tJIrI" id="3KV3FXk1jnK" role="jymVt" />
     <node concept="3clFb_" id="3KV3FXk1jPV" role="jymVt">
       <property role="TrG5h" value="doFind" />
       <node concept="37vLTG" id="3KV3FXk1k9N" role="3clF46">
-        <property role="TrG5h" value="fullPathsVal" />
+        <property role="TrG5h" value="allPaths" />
         <node concept="3uibUv" id="3KV3FXk1kby" role="1tU5fm">
           <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
         </node>
       </node>
       <node concept="37vLTG" id="3KV3FXk1kjq" role="3clF46">
-        <property role="TrG5h" value="startFromVal" />
+        <property role="TrG5h" value="startFrom" />
         <node concept="3uibUv" id="3KV3FXk1kll" role="1tU5fm">
           <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
         </node>
@@ -20680,11 +20868,11 @@
           <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
         </node>
       </node>
-      <node concept="3Tm6S6" id="WauyOOvMr0" role="1B3o_S" />
+      <node concept="3Tmbuc" id="2rIdnPtSIql" role="1B3o_S" />
       <node concept="3clFbS" id="3KV3FXk1jPZ" role="3clF47">
         <node concept="3cpWs8" id="3KV3FXk1J2G" role="3cqZAp">
           <node concept="3cpWsn" id="3KV3FXk1J2H" role="3cpWs9">
-            <property role="TrG5h" value="fullPathsList" />
+            <property role="TrG5h" value="allPathsList" />
             <node concept="3uibUv" id="3KV3FXk1J2I" role="1tU5fm">
               <ref role="3uigEE" to="33ny:~List" resolve="List" />
               <node concept="3qUE_q" id="3KV3FXk1J2J" role="11_B2D">
@@ -20694,10 +20882,10 @@
               </node>
             </node>
             <node concept="2YIFZM" id="3KV3FXk1J2L" role="33vP2m">
-              <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="AbstractSolver" />
+              <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="BaseHelper" />
               <ref role="37wK5l" node="3KV3FXjZXXV" resolve="getList" />
               <node concept="37vLTw" id="3KV3FXk1J6J" role="37wK5m">
-                <ref role="3cqZAo" node="3KV3FXk1k9N" resolve="fullPathsVal" />
+                <ref role="3cqZAo" node="3KV3FXk1k9N" resolve="allPaths" />
               </node>
             </node>
           </node>
@@ -20715,7 +20903,7 @@
             <node concept="2OqwBi" id="3KV3FXk1J8q" role="3fr31v">
               <node concept="2OqwBi" id="3KV3FXk1J8r" role="2Oq$k0">
                 <node concept="37vLTw" id="3KV3FXk1J8s" role="2Oq$k0">
-                  <ref role="3cqZAo" node="3KV3FXk1J2H" resolve="fullPathsList" />
+                  <ref role="3cqZAo" node="3KV3FXk1J2H" resolve="allPathsList" />
                 </node>
                 <node concept="liA8E" id="3KV3FXk1J8t" role="2OqNvi">
                   <ref role="37wK5l" to="33ny:~List.iterator():java.util.Iterator" resolve="iterator" />
@@ -20774,7 +20962,7 @@
                   </node>
                 </node>
                 <node concept="2YIFZM" id="3KV3FXk1Nah" role="33vP2m">
-                  <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="AbstractSolver" />
+                  <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="BaseHelper" />
                   <ref role="37wK5l" node="3KV3FXjZXXV" resolve="getList" />
                   <node concept="37vLTw" id="3KV3FXk1Nai" role="37wK5m">
                     <ref role="3cqZAo" node="3KV3FXk1KbY" resolve="path" />
@@ -20811,7 +20999,7 @@
                         <ref role="3cqZAo" node="3KV3FXk1OU$" resolve="next" />
                       </node>
                       <node concept="37vLTw" id="3KV3FXk1P9B" role="37wK5m">
-                        <ref role="3cqZAo" node="3KV3FXk1kjq" resolve="startFromVal" />
+                        <ref role="3cqZAo" node="3KV3FXk1kjq" resolve="startFrom" />
                       </node>
                     </node>
                   </node>
@@ -20961,7 +21149,7 @@
             </node>
           </node>
           <node concept="37vLTw" id="3KV3FXk1Kc4" role="1DdaDG">
-            <ref role="3cqZAo" node="3KV3FXk1J2H" resolve="fullPathsList" />
+            <ref role="3cqZAo" node="3KV3FXk1J2H" resolve="allPathsList" />
           </node>
         </node>
         <node concept="3clFbH" id="3KV3FXk1jY8" role="3cqZAp" />
@@ -21004,35 +21192,22 @@
       </node>
     </node>
     <node concept="2tJIrI" id="3KV3FXk1jp4" role="jymVt" />
-    <node concept="3clFbW" id="3KV3FXk1jky" role="jymVt">
-      <node concept="3cqZAl" id="3KV3FXk1jk$" role="3clF45" />
-      <node concept="3Tm6S6" id="3KV3FXk1jlu" role="1B3o_S" />
-      <node concept="3clFbS" id="3KV3FXk1jkA" role="3clF47">
-        <node concept="XkiVB" id="3KV3FXk1$Vg" role="3cqZAp">
-          <ref role="37wK5l" node="3KV3FXk1tGv" resolve="AbstractSolver" />
-          <node concept="37vLTw" id="3KV3FXk1$VL" role="37wK5m">
-            <ref role="3cqZAo" node="3KV3FXk1jlA" resolve="sessionSolver" />
-          </node>
-        </node>
-      </node>
-      <node concept="37vLTG" id="3KV3FXk1jlA" role="3clF46">
-        <property role="TrG5h" value="sessionSolver" />
-        <node concept="3uibUv" id="5jCHAT2FkcL" role="1tU5fm">
-          <ref role="3uigEE" to="w7la:~SessionSolver" resolve="SessionSolver" />
-        </node>
-      </node>
-    </node>
-    <node concept="2tJIrI" id="3KV3FXk1jnK" role="jymVt" />
     <node concept="3Tm1VV" id="3KV3FXk1fje" role="1B3o_S" />
     <node concept="3uibUv" id="3KV3FXk1$PC" role="1zkMxy">
-      <ref role="3uigEE" node="3KV3FXk1mCr" resolve="AbstractSolver" />
+      <ref role="3uigEE" node="3KV3FXk1mCr" resolve="BaseHelper" />
     </node>
   </node>
   <node concept="312cEu" id="3KV3FXk1mCr">
-    <property role="TrG5h" value="AbstractSolver" />
+    <property role="TrG5h" value="BaseHelper" />
     <property role="1sVAO0" value="true" />
     <property role="3GE5qa" value="util" />
     <node concept="2tJIrI" id="3KV3FXk1mCW" role="jymVt" />
+    <node concept="3clFbW" id="3KV3FXk1tGv" role="jymVt">
+      <node concept="3cqZAl" id="3KV3FXk1tGx" role="3clF45" />
+      <node concept="3Tmbuc" id="3KV3FXk1u5t" role="1B3o_S" />
+      <node concept="3clFbS" id="3KV3FXk1tGz" role="3clF47" />
+    </node>
+    <node concept="2tJIrI" id="3KV3FXk1qx0" role="jymVt" />
     <node concept="3Tm1VV" id="3KV3FXk1mCs" role="1B3o_S" />
     <node concept="2YIFZL" id="5H6hZahoMly" role="jymVt">
       <property role="TrG5h" value="buildResult" />
@@ -21192,38 +21367,31 @@
       <property role="DiZV1" value="false" />
       <property role="od$2w" value="false" />
       <node concept="3clFbS" id="3KV3FXjZkvI" role="3clF47">
-        <node concept="3cpWs6" id="3KV3FXjZkQU" role="3cqZAp">
-          <node concept="2OqwBi" id="3KV3FXjZkQV" role="3cqZAk">
-            <node concept="37vLTw" id="3KV3FXjZkRN" role="2Oq$k0">
-              <ref role="3cqZAo" node="3KV3FXjZFTt" resolve="sessionSolver" />
+        <node concept="3cpWs6" id="2rIdnPtNwcM" role="3cqZAp">
+          <node concept="2OqwBi" id="2rIdnPtNxjl" role="3cqZAk">
+            <node concept="37vLTw" id="2rIdnPtNwiM" role="2Oq$k0">
+              <ref role="3cqZAo" node="2rIdnPtNwfQ" resolve="uniSolver" />
             </node>
-            <node concept="liA8E" id="3KV3FXjZkQX" role="2OqNvi">
-              <ref role="37wK5l" to="w7la:~SessionSolver.ask(jetbrains.mps.logic.reactor.program.Predicate,jetbrains.mps.logic.reactor.logical.LogicalContext):boolean" resolve="ask" />
-              <node concept="2YIFZM" id="5jCHAT29rUQ" role="37wK5m">
-                <ref role="37wK5l" to="cxk7:5jCHAT29qgV" resolve="unifies" />
-                <ref role="1Pybhc" to="cxk7:2GO7tyJVmP4" resolve="UnificationPredicate" />
-                <node concept="37vLTw" id="3KV3FXjZkRO" role="37wK5m">
-                  <ref role="3cqZAo" node="3KV3FXjZkR1" resolve="nextLeft" />
-                </node>
-                <node concept="37vLTw" id="3KV3FXjZkRM" role="37wK5m">
-                  <ref role="3cqZAo" node="3KV3FXjZkR3" resolve="nextRight" />
-                </node>
+            <node concept="liA8E" id="2rIdnPtNxD0" role="2OqNvi">
+              <ref role="37wK5l" node="2rIdnPu4EAP" resolve="ask" />
+              <node concept="37vLTw" id="2rIdnPtNxDe" role="37wK5m">
+                <ref role="3cqZAo" node="3KV3FXjZkR1" resolve="left" />
               </node>
-              <node concept="37vLTw" id="5jCHAT2dMTY" role="37wK5m">
-                <ref role="3cqZAo" node="5jCHAT2dL9L" resolve="NO_CONTEXT" />
+              <node concept="37vLTw" id="2rIdnPtNxOy" role="37wK5m">
+                <ref role="3cqZAo" node="3KV3FXjZkR3" resolve="right" />
               </node>
             </node>
           </node>
         </node>
       </node>
       <node concept="37vLTG" id="3KV3FXjZkR1" role="3clF46">
-        <property role="TrG5h" value="nextLeft" />
+        <property role="TrG5h" value="left" />
         <node concept="3uibUv" id="3KV3FXjZkR2" role="1tU5fm">
           <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
         </node>
       </node>
       <node concept="37vLTG" id="3KV3FXjZkR3" role="3clF46">
-        <property role="TrG5h" value="nextRight" />
+        <property role="TrG5h" value="right" />
         <node concept="3uibUv" id="3KV3FXjZkR4" role="1tU5fm">
           <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
         </node>
@@ -21293,228 +21461,108 @@
       <node concept="3Tmbuc" id="3KV3FXk1xaX" role="1B3o_S" />
     </node>
     <node concept="2tJIrI" id="3KV3FXk1Dq_" role="jymVt" />
-    <node concept="3clFbW" id="3KV3FXk1tGv" role="jymVt">
-      <node concept="3cqZAl" id="3KV3FXk1tGx" role="3clF45" />
-      <node concept="3Tmbuc" id="3KV3FXk1u5t" role="1B3o_S" />
-      <node concept="3clFbS" id="3KV3FXk1tGz" role="3clF47">
-        <node concept="3clFbF" id="3KV3FXk1u66" role="3cqZAp">
-          <node concept="37vLTI" id="3KV3FXk1uaA" role="3clFbG">
-            <node concept="37vLTw" id="3KV3FXk1ubz" role="37vLTx">
-              <ref role="3cqZAo" node="3KV3FXk1u5_" resolve="sessionSolver" />
-            </node>
-            <node concept="2OqwBi" id="3KV3FXk1u6y" role="37vLTJ">
-              <node concept="Xjq3P" id="3KV3FXk1u65" role="2Oq$k0" />
-              <node concept="2OwXpG" id="3KV3FXk1u8T" role="2OqNvi">
-                <ref role="2Oxat5" node="3KV3FXjZFTt" resolve="sessionSolver" />
+    <node concept="312cEu" id="2rIdnPu4Ezv" role="jymVt">
+      <property role="TrG5h" value="UniSolver" />
+      <node concept="2tJIrI" id="2rIdnPu4E_G" role="jymVt" />
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+        <node concept="37vLTG" id="2rIdnPu4EAQ" role="3clF46">
+          <property role="TrG5h" value="left" />
+          <node concept="3uibUv" id="2rIdnPu4EAR" role="1tU5fm">
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+          <property role="TrG5h" value="right" />
+          <node concept="3uibUv" id="2rIdnPu4EAT" role="1tU5fm">
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+        <node concept="3Tm1VV" id="2rIdnPu4EAV" role="1B3o_S" />
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+              <node concept="37vLTw" id="2rIdnPu4Fmc" role="37wK5m">
+                <ref role="3cqZAo" node="2rIdnPu4EAQ" resolve="left" />
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+              <node concept="37vLTw" id="2rIdnPu4FmE" role="37wK5m">
+                <ref role="3cqZAo" node="2rIdnPu4EAS" resolve="right" />
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-        <node concept="3uibUv" id="5jCHAT2F7UF" role="1tU5fm">
-          <ref role="3uigEE" to="w7la:~SessionSolver" resolve="SessionSolver" />
-        </node>
+      <node concept="2tJIrI" id="2rIdnPu4E_I" role="jymVt" />
+      <node concept="3Tmbuc" id="2rIdnPu4Fyw" role="1B3o_S" />
+      <node concept="3uibUv" id="2rIdnPu4E_E" role="1zkMxy">
+        <ref role="3uigEE" to="cxk7:6GYQG_Spvw5" resolve="UnificationPredicate.UnificationSolver" />
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-      <node concept="3uibUv" id="5jCHAT2dLkP" role="1tU5fm">
-        <ref role="3uigEE" to="bj13:~LogicalContext" resolve="LogicalContext" />
+    <node concept="2tJIrI" id="2rIdnPu4EfF" role="jymVt" />
+    <node concept="312cEg" id="2rIdnPtNwfQ" role="jymVt">
+      <property role="TrG5h" value="uniSolver" />
+      <node concept="3Tm6S6" id="2rIdnPtNwfR" role="1B3o_S" />
+      <node concept="3uibUv" id="2rIdnPu4FmY" role="1tU5fm">
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-                <node concept="YS8fn" id="5jCHAT29xwA" role="3cqZAp">
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-                <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
-              </node>
-            </node>
-          </node>
+      <node concept="2ShNRf" id="2rIdnPtPstG" role="33vP2m">
+        <node concept="HV5vD" id="2rIdnPu4Fwr" role="2ShVmc">
+          <ref role="HV5vE" node="2rIdnPu4Ezv" resolve="BaseHelper.UniSolver" />
         </node>
       </node>
     </node>
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-      <node concept="3uibUv" id="5jCHAT2F7yC" role="1tU5fm">
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-      </node>
-    </node>
   </node>
   <node concept="312cEu" id="5H6hZahmlon">
-    <property role="TrG5h" value="LubSolver" />
+    <property role="TrG5h" value="LubHelper" />
     <property role="3GE5qa" value="util" />
     <node concept="2tJIrI" id="5H6hZahrdLM" role="jymVt" />
     <node concept="2YIFZL" id="5H6hZahmloU" role="jymVt">
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-      <node concept="37vLTG" id="5H6hZahmlpn" role="3clF46">
-        <property role="TrG5h" value="result" />
-        <node concept="3uibUv" id="3kjrYXAyPDj" role="1tU5fm">
-          <ref role="3uigEE" to="bj13:~Logical" resolve="Logical" />
-        </node>
-      </node>
+      <property role="TrG5h" value="findRawLub" />
       <node concept="37vLTG" id="5H6hZahmlpH" role="3clF46">
         <property role="TrG5h" value="left" />
-        <node concept="3uibUv" id="3kjrYXAyPNu" role="1tU5fm">
-          <ref role="3uigEE" to="bj13:~Logical" resolve="Logical" />
+        <node concept="3uibUv" id="2rIdnPtx_jh" role="1tU5fm">
+          <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
         </node>
       </node>
       <node concept="37vLTG" id="5H6hZahmlpT" role="3clF46">
         <property role="TrG5h" value="right" />
-        <node concept="3uibUv" id="3kjrYXAyQ1e" role="1tU5fm">
-          <ref role="3uigEE" to="bj13:~Logical" resolve="Logical" />
+        <node concept="3uibUv" id="2rIdnPtx_kc" role="1tU5fm">
+          <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
         </node>
       </node>
-      <node concept="10P_77" id="5H6hZahmlpi" role="3clF45" />
+      <node concept="3uibUv" id="2rIdnPtx_ii" role="3clF45">
+        <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+      </node>
       <node concept="3Tm1VV" id="5H6hZahmloX" role="1B3o_S" />
       <node concept="3clFbS" id="5H6hZahmloY" role="3clF47">
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-              <node concept="3clFbT" id="3KV3FXjZHhY" role="3cqZAk">
-                <property role="3clFbU" value="false" />
+            <node concept="YS8fn" id="2rIdnPtzS9Q" role="3cqZAp">
+              <node concept="2ShNRf" id="2rIdnPtzSaZ" role="YScLw">
+                <node concept="1pGfFk" id="2rIdnPtzSuk" role="2ShVmc">
+                  <ref role="37wK5l" to="wyt6:~NullPointerException.&lt;init&gt;()" resolve="NullPointerException" />
+                </node>
               </node>
             </node>
           </node>
           <node concept="22lmx$" id="3KV3FXjZHhZ" role="3clFbw">
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-                <ref role="3cqZAo" node="3KV3FXjZHhO" resolve="rightVal" />
+              <node concept="37vLTw" id="2rIdnPtx_qe" role="3uHU7B">
+                <ref role="3cqZAo" node="5H6hZahmlpT" resolve="right" />
               </node>
             </node>
             <node concept="3clFbC" id="3KV3FXjZHi3" role="3uHU7B">
-              <node concept="37vLTw" id="3KV3FXjZHi4" role="3uHU7B">
-                <ref role="3cqZAo" node="3KV3FXjZHhG" resolve="leftVal" />
+              <node concept="37vLTw" id="2rIdnPtx_mV" role="3uHU7B">
+                <ref role="3cqZAo" node="5H6hZahmlpH" resolve="left" />
               </node>
               <node concept="10Nm6u" id="3KV3FXjZHi5" role="3uHU7w" />
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           </node>
         </node>
         <node concept="3clFbH" id="3KV3FXjZHi6" role="3cqZAp" />
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-            <node concept="3uibUv" id="5uFPQ7ClQgn" role="1tU5fm">
-              <ref role="3uigEE" to="w7la:~SessionSolver" resolve="SessionSolver" />
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-              <node concept="2YIFZM" id="5uFPQ7ClQgt" role="2Oq$k0">
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-                <ref role="37wK5l" to="w7la:~EvaluationSession.current():jetbrains.mps.logic.reactor.evaluation.EvaluationSession" resolve="current" />
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-              <node concept="liA8E" id="5uFPQ7ClQgu" role="2OqNvi">
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           <node concept="3cpWsn" id="3KV3FXk0pld" role="3cpWs9">
             <property role="TrG5h" value="resultList" />
@@ -21527,19 +21575,16 @@
             <node concept="2OqwBi" id="3KV3FXk0ple" role="33vP2m">
               <node concept="2ShNRf" id="3KV3FXk0plf" role="2Oq$k0">
                 <node concept="1pGfFk" id="3KV3FXk0plg" role="2ShVmc">
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-                    <ref role="3cqZAo" node="5uFPQ7ClQgr" resolve="sessionSolver" />
-                  </node>
+                  <ref role="37wK5l" node="3KV3FXjZFyb" resolve="LubHelper" />
                 </node>
               </node>
               <node concept="liA8E" id="3KV3FXk0pli" role="2OqNvi">
-                <ref role="37wK5l" node="3KV3FXjZGYZ" resolve="doFind" />
-                <node concept="37vLTw" id="3KV3FXk0plk" role="37wK5m">
-                  <ref role="3cqZAo" node="3KV3FXjZHhG" resolve="leftVal" />
+                <ref role="37wK5l" node="3KV3FXjZGYZ" resolve="doFindRaw" />
+                <node concept="37vLTw" id="2rIdnPtx_B5" role="37wK5m">
+                  <ref role="3cqZAo" node="5H6hZahmlpH" resolve="left" />
                 </node>
-                <node concept="37vLTw" id="3KV3FXk0pll" role="37wK5m">
-                  <ref role="3cqZAo" node="3KV3FXjZHhO" resolve="rightVal" />
+                <node concept="37vLTw" id="2rIdnPtx_Mf" role="37wK5m">
+                  <ref role="3cqZAo" node="5H6hZahmlpT" resolve="right" />
                 </node>
               </node>
             </node>
@@ -21555,56 +21600,39 @@
             </node>
           </node>
           <node concept="3clFbS" id="3KV3FXjZMUD" role="3clFbx">
-            <node concept="3clFbF" id="5_6ImQZ8n1E" role="3cqZAp">
-              <node concept="2YIFZM" id="74q$MmRAZEU" role="3clFbG">
-                <ref role="37wK5l" node="5_6ImQZ8ja0" resolve="fail" />
-                <ref role="1Pybhc" node="5_6ImQZ8j9D" resolve="SolverUtil" />
-                <node concept="Xl_RD" id="5_6ImQZ8nfH" role="37wK5m">
-                  <property role="Xl_RC" value="could not find LUB" />
-                </node>
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-            </node>
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-              <node concept="3clFbT" id="3KV3FXjZMUF" role="3cqZAk">
-                <property role="3clFbU" value="false" />
-              </node>
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-            <node concept="3clFbH" id="5_6ImQZ8n8S" role="3cqZAp" />
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-          <node concept="9aQIb" id="3KV3FXk0tjw" role="9aQIa">
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-                <node concept="2OqwBi" id="3KV3FXjZMUH" role="3clFbG">
-                  <node concept="37vLTw" id="3KV3FXk0rYO" role="2Oq$k0">
-                    <ref role="3cqZAo" node="5uFPQ7ClQgr" resolve="sessionSolver" />
-                  </node>
-                  <node concept="liA8E" id="3KV3FXjZMUJ" role="2OqNvi">
-                    <ref role="37wK5l" to="w7la:~SessionSolver.tell(jetbrains.mps.logic.reactor.program.AndItem,jetbrains.mps.logic.reactor.logical.LogicalContext):void" resolve="tell" />
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-                      <ref role="37wK5l" to="cxk7:5jCHAT2iqus" resolve="eq" />
-                      <ref role="1Pybhc" to="cxk7:3HJTsBn4kk_" resolve="EqualsPredicate" />
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-                        <ref role="37wK5l" node="5H6hZahoMly" resolve="buildResult" />
-                        <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="AbstractSolver" />
-                        <node concept="37vLTw" id="3KV3FXjZMUP" role="37wK5m">
-                          <ref role="3cqZAo" node="3KV3FXk0pld" resolve="resultList" />
+            <node concept="YS8fn" id="2rIdnPtxCH3" role="3cqZAp">
+              <node concept="2ShNRf" id="2rIdnPtxCH4" role="YScLw">
+                <node concept="1pGfFk" id="2rIdnPtxCH5" role="2ShVmc">
+                  <ref role="37wK5l" to="w7la:~EvaluationFailureException.&lt;init&gt;(java.lang.String)" resolve="EvaluationFailureException" />
+                  <node concept="3cpWs3" id="2rIdnPvBFl1" role="37wK5m">
+                    <node concept="37vLTw" id="2rIdnPvBFls" role="3uHU7w">
+                      <ref role="3cqZAo" node="5H6hZahmlpT" resolve="right" />
+                    </node>
+                    <node concept="3cpWs3" id="2rIdnPvBEOO" role="3uHU7B">
+                      <node concept="3cpWs3" id="2rIdnPvBEr0" role="3uHU7B">
+                        <node concept="Xl_RD" id="2rIdnPtxCHG" role="3uHU7B">
+                          <property role="Xl_RC" value="could not find LUB of " />
+                        </node>
+                        <node concept="37vLTw" id="2rIdnPvBEsS" role="3uHU7w">
+                          <ref role="3cqZAo" node="5H6hZahmlpH" resolve="left" />
                         </node>
                       </node>
-                    </node>
-                    <node concept="37vLTw" id="5jCHAT2ivNL" role="37wK5m">
-                      <ref role="3cqZAo" node="5jCHAT2dL9L" resolve="NO_CONTEXT" />
+                      <node concept="Xl_RD" id="2rIdnPvBEQL" role="3uHU7w">
+                        <property role="Xl_RC" value=" and " />
+                      </node>
                     </node>
                   </node>
                 </node>
               </node>
-              <node concept="3cpWs6" id="3KV3FXk0sZe" role="3cqZAp">
-                <node concept="3clFbT" id="3KV3FXjZMUU" role="3cqZAk">
-                  <property role="3clFbU" value="true" />
-                </node>
-              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3cpWs6" id="3KV3FXk0sZe" role="3cqZAp">
+          <node concept="2YIFZM" id="2rIdnPtxCFF" role="3cqZAk">
+            <ref role="37wK5l" node="5H6hZahoMly" resolve="buildResult" />
+            <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="BaseHelper" />
+            <node concept="37vLTw" id="2rIdnPtxCFG" role="37wK5m">
+              <ref role="3cqZAo" node="3KV3FXk0pld" resolve="resultList" />
             </node>
           </node>
         </node>
@@ -21750,41 +21778,24 @@
             <property role="1dT_AB" value="" />
           </node>
         </node>
-        <node concept="TZ5HA" id="3kjrYXAt3TT" role="TZ5H$">
-          <node concept="1dT_AC" id="3kjrYXAt3TU" role="1dT_Ay">
-            <property role="1dT_AB" value="" />
-          </node>
-        </node>
-        <node concept="TUZQ0" id="3kjrYXAt3Va" role="3nqlJM">
-          <property role="TUZQ4" value="Logical&lt;TreeForm&gt;" />
-          <node concept="zr_55" id="3kjrYXAt3Vy" role="zr_5Q">
-            <ref role="zr_51" node="5H6hZahmlpn" resolve="result" />
-          </node>
-        </node>
-        <node concept="TUZQ0" id="3kjrYXAt3Xl" role="3nqlJM">
-          <property role="TUZQ4" value="Logical&lt;TreeForm&gt;" />
-          <node concept="zr_55" id="3kjrYXAt3Yb" role="zr_5Q">
-            <ref role="zr_51" node="5H6hZahmlpH" resolve="left" />
-          </node>
-        </node>
-        <node concept="TUZQ0" id="3kjrYXAt3XJ" role="3nqlJM">
-          <property role="TUZQ4" value="Logical&lt;TreeForm&gt;" />
-          <node concept="zr_55" id="3kjrYXAt3Ys" role="zr_5Q">
-            <ref role="zr_51" node="5H6hZahmlpT" resolve="right" />
-          </node>
-        </node>
       </node>
     </node>
     <node concept="2tJIrI" id="3KV3FXjZFHE" role="jymVt" />
+    <node concept="3clFbW" id="3KV3FXjZFyb" role="jymVt">
+      <node concept="3cqZAl" id="3KV3FXjZFyd" role="3clF45" />
+      <node concept="3Tmbuc" id="2rIdnPtI2N2" role="1B3o_S" />
+      <node concept="3clFbS" id="3KV3FXjZFyf" role="3clF47" />
+    </node>
+    <node concept="2tJIrI" id="5H6hZahoLOt" role="jymVt" />
     <node concept="3clFb_" id="3KV3FXjZGYZ" role="jymVt">
-      <property role="TrG5h" value="doFind" />
+      <property role="TrG5h" value="doFindRaw" />
       <node concept="3uibUv" id="3KV3FXk0o6d" role="3clF45">
         <ref role="3uigEE" to="33ny:~List" resolve="List" />
         <node concept="3uibUv" id="3KV3FXk0oGr" role="11_B2D">
           <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
         </node>
       </node>
-      <node concept="3Tm6S6" id="3KV3FXjZPWJ" role="1B3o_S" />
+      <node concept="3Tmbuc" id="2rIdnPtJYqP" role="1B3o_S" />
       <node concept="3clFbS" id="3KV3FXjZGZ3" role="3clF47">
         <node concept="3cpWs8" id="3KV3FXjZHi9" role="3cqZAp">
           <node concept="3cpWsn" id="3KV3FXjZHia" role="3cpWs9">
@@ -21798,7 +21809,7 @@
               </node>
             </node>
             <node concept="2YIFZM" id="3KV3FXk1vIO" role="33vP2m">
-              <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="AbstractSolver" />
+              <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="BaseHelper" />
               <ref role="37wK5l" node="3KV3FXjZXXV" resolve="getList" />
               <node concept="37vLTw" id="3KV3FXjZT9c" role="37wK5m">
                 <ref role="3cqZAo" node="3KV3FXjZHfU" resolve="leftVal" />
@@ -21818,7 +21829,7 @@
               </node>
             </node>
             <node concept="2YIFZM" id="3KV3FXk1vIR" role="33vP2m">
-              <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="AbstractSolver" />
+              <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="BaseHelper" />
               <ref role="37wK5l" node="3KV3FXjZXXV" resolve="getList" />
               <node concept="37vLTw" id="3KV3FXjZTLt" role="37wK5m">
                 <ref role="3cqZAo" node="3KV3FXjZHfW" resolve="rightVal" />
@@ -21998,7 +22009,7 @@
                       </node>
                     </node>
                     <node concept="2YIFZM" id="3KV3FXk1vIL" role="33vP2m">
-                      <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="AbstractSolver" />
+                      <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="BaseHelper" />
                       <ref role="37wK5l" node="3KV3FXjZXXV" resolve="getList" />
                       <node concept="37vLTw" id="3KV3FXjZTTV" role="37wK5m">
                         <ref role="3cqZAo" node="3KV3FXjZDIE" resolve="nextPathLeft" />
@@ -22018,7 +22029,7 @@
                       </node>
                     </node>
                     <node concept="2YIFZM" id="3KV3FXk1vIU" role="33vP2m">
-                      <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="AbstractSolver" />
+                      <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="BaseHelper" />
                       <ref role="37wK5l" node="3KV3FXjZXXV" resolve="getList" />
                       <node concept="37vLTw" id="3KV3FXjZU0R" role="37wK5m">
                         <ref role="3cqZAo" node="3KV3FXjZDIB" resolve="nextPathRight" />
@@ -22391,7 +22402,7 @@
                   </node>
                 </node>
                 <node concept="2YIFZM" id="3KV3FXk1vIF" role="33vP2m">
-                  <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="AbstractSolver" />
+                  <ref role="1Pybhc" node="3KV3FXk1mCr" resolve="BaseHelper" />
                   <ref role="37wK5l" node="3KV3FXjZXXV" resolve="getList" />
                   <node concept="37vLTw" id="3KV3FXk0Dlu" role="37wK5m">
                     <ref role="3cqZAo" node="3KV3FXk0DmT" resolve="nextPath" />
@@ -22653,25 +22664,6 @@
       </node>
     </node>
     <node concept="2tJIrI" id="3KV3FXjZF4v" role="jymVt" />
-    <node concept="3clFbW" id="3KV3FXjZFyb" role="jymVt">
-      <node concept="37vLTG" id="3KV3FXjZFT2" role="3clF46">
-        <property role="TrG5h" value="sessionSolver" />
-        <node concept="3uibUv" id="5jCHAT2FfMi" role="1tU5fm">
-          <ref role="3uigEE" to="w7la:~SessionSolver" resolve="SessionSolver" />
-        </node>
-      </node>
-      <node concept="3cqZAl" id="3KV3FXjZFyd" role="3clF45" />
-      <node concept="3Tm6S6" id="3KV3FXjZFHB" role="1B3o_S" />
-      <node concept="3clFbS" id="3KV3FXjZFyf" role="3clF47">
-        <node concept="XkiVB" id="3KV3FXk1ucM" role="3cqZAp">
-          <ref role="37wK5l" node="3KV3FXk1tGv" resolve="AbstractSolver" />
-          <node concept="37vLTw" id="3KV3FXk1udj" role="37wK5m">
-            <ref role="3cqZAo" node="3KV3FXjZFT2" resolve="sessionSolver" />
-          </node>
-        </node>
-      </node>
-    </node>
-    <node concept="2tJIrI" id="5H6hZahoLOt" role="jymVt" />
     <node concept="3Tm1VV" id="5H6hZahmloo" role="1B3o_S" />
     <node concept="312cEg" id="3KV3FXjZG64" role="jymVt">
       <property role="TrG5h" value="candidateList" />
@@ -22712,177 +22704,9 @@
       </node>
     </node>
     <node concept="3uibUv" id="3KV3FXk1o$R" role="1zkMxy">
-      <ref role="3uigEE" node="3KV3FXk1mCr" resolve="AbstractSolver" />
+      <ref role="3uigEE" node="3KV3FXk1mCr" resolve="BaseHelper" />
     </node>
   </node>
-  <node concept="312cEu" id="2zBk6uIjXRS">
-    <property role="TrG5h" value="TypeUtil" />
-    <property role="3GE5qa" value="relation" />
-    <node concept="2tJIrI" id="2zBk6uIk5Xl" role="jymVt" />
-    <node concept="2YIFZL" id="6X1kwjBw$lH" role="jymVt">
-      <property role="TrG5h" value="expandAll" />
-      <node concept="37vLTG" id="6X1kwjB$Pn3" role="3clF46">
-        <property role="TrG5h" value="result" />
-        <node concept="26uTi9" id="6X1kwjB$Pp2" role="1tU5fm" />
-      </node>
-      <node concept="37vLTG" id="6X1kwjB$JiG" role="3clF46">
-        <property role="TrG5h" value="listOfLists" />
-        <node concept="_YKpA" id="6X1kwjB$WbZ" role="1tU5fm">
-          <node concept="_YKpA" id="6X1kwjB$Wc0" role="_ZDj9">
-            <node concept="3Tqbb2" id="6X1kwjB$Wc1" role="_ZDj9" />
-          </node>
-        </node>
-      </node>
-      <node concept="3cqZAl" id="6X1kwjBw$lJ" role="3clF45" />
-      <node concept="3Tm1VV" id="6X1kwjBw$lK" role="1B3o_S" />
-      <node concept="3clFbS" id="6X1kwjBw$lL" role="3clF47">
-        <node concept="3cpWs8" id="6X1kwjB_6wx" role="3cqZAp">
-          <node concept="3cpWsn" id="6X1kwjB_6wy" role="3cpWs9">
-            <property role="TrG5h" value="listArr" />
-            <node concept="10Q1$e" id="6X1kwjB_6vM" role="1tU5fm">
-              <node concept="3uibUv" id="6X1kwjB_6vP" role="10Q1$1">
-                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-              </node>
-            </node>
-            <node concept="2OqwBi" id="6X1kwjB_6wz" role="33vP2m">
-              <node concept="2OqwBi" id="6X1kwjB_6w$" role="2Oq$k0">
-                <node concept="37vLTw" id="6X1kwjB_6w_" role="2Oq$k0">
-                  <ref role="3cqZAo" node="6X1kwjB$JiG" resolve="listOfLists" />
-                </node>
-                <node concept="3$u5V9" id="6X1kwjB_6wA" role="2OqNvi">
-                  <node concept="1bVj0M" id="6X1kwjB_6wB" role="23t8la">
-                    <node concept="3clFbS" id="6X1kwjB_6wC" role="1bW5cS">
-                      <node concept="3cpWs8" id="6X1kwjB_6wD" role="3cqZAp">
-                        <node concept="3cpWsn" id="6X1kwjB_6wE" role="3cpWs9">
-                          <property role="TrG5h" value="termArr" />
-                          <node concept="10Q1$e" id="6X1kwjB_6wF" role="1tU5fm">
-                            <node concept="3uibUv" id="6X1kwjBC4Ga" role="10Q1$1">
-                              <ref role="3uigEE" to="6exd:uNmovXiEd4" resolve="Variable" />
-                            </node>
-                          </node>
-                          <node concept="2OqwBi" id="6X1kwjB_6wH" role="33vP2m">
-                            <node concept="2OqwBi" id="6X1kwjB_6wI" role="2Oq$k0">
-                              <node concept="37vLTw" id="6X1kwjB_6wJ" role="2Oq$k0">
-                                <ref role="3cqZAo" node="6X1kwjB_6xl" resolve="nodeList" />
-                              </node>
-                              <node concept="3$u5V9" id="6X1kwjB_6wK" role="2OqNvi">
-                                <node concept="1bVj0M" id="6X1kwjB_6wL" role="23t8la">
-                                  <node concept="3clFbS" id="6X1kwjB_6wM" role="1bW5cS">
-                                    <node concept="3X$Joe" id="6X1kwjB_6wN" role="3cqZAp">
-                                      <node concept="aZer4" id="6X1kwjB_6wO" role="3XD1gS">
-                                        <property role="TrG5h" value="Type" />
-                                      </node>
-                                    </node>
-                                    <node concept="3Aqczg" id="6X1kwjB_6wP" role="3cqZAp">
-                                      <node concept="1imXTs" id="6X1kwjB_6wQ" role="3Aqpz8">
-                                        <node concept="a7P8L" id="6X1kwjB_6wR" role="1imXu6">
-                                          <ref role="a7OzE" node="6X1kwjB_6wO" resolve="Type" />
-                                        </node>
-                                        <node concept="37vLTw" id="6X1kwjB_6wS" role="1imXSf">
-                                          <ref role="3cqZAo" node="6X1kwjB_6x5" resolve="node" />
-                                        </node>
-                                      </node>
-                                    </node>
-                                    <node concept="3clFbF" id="6X1kwjBC30$" role="3cqZAp">
-                                      <node concept="2YIFZM" id="3gNap3fNlJj" role="3clFbG">
-                                        <ref role="37wK5l" to="oy3s:7HUwyZb7chj" resolve="asVariable" />
-                                        <ref role="1Pybhc" to="oy3s:677NV565N1x" resolve="LogicalUtil" />
-                                        <node concept="1nq8_$" id="49obaclfij4" role="37wK5m">
-                                          <node concept="a7P8L" id="6X1kwjBC3Gn" role="1nq8_t">
-                                            <ref role="a7OzE" node="6X1kwjB_6wO" resolve="Type" />
-                                          </node>
-                                        </node>
-                                      </node>
-                                    </node>
-                                  </node>
-                                  <node concept="Rh6nW" id="6X1kwjB_6x5" role="1bW2Oz">
-                                    <property role="TrG5h" value="node" />
-                                    <node concept="2jxLKc" id="6X1kwjB_6x6" role="1tU5fm" />
-                                  </node>
-                                </node>
-                              </node>
-                            </node>
-                            <node concept="3_kTaI" id="6X1kwjB_6x7" role="2OqNvi" />
-                          </node>
-                        </node>
-                      </node>
-                      <node concept="3clFbH" id="6X1kwjB_6x8" role="3cqZAp" />
-                      <node concept="3clFbF" id="6X1kwjB_6xe" role="3cqZAp">
-                        <node concept="3YNDqN" id="428_4iYkDDp" role="3clFbG">
-                          <node concept="HAVWr" id="5WBVN_MKq4j" role="HARoY">
-                            <node concept="1oi5UN" id="6X1kwjB_6xi" role="HAVW7">
-                              <node concept="22Ky0T" id="6X1kwjB_6xj" role="lGtFl">
-                                <node concept="37vLTw" id="6X1kwjB_6xk" role="22Ky0K">
-                                  <ref role="3cqZAo" node="6X1kwjB_6wE" resolve="termArr" />
-                                </node>
-                              </node>
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
-                    <node concept="Rh6nW" id="6X1kwjB_6xl" role="1bW2Oz">
-                      <property role="TrG5h" value="nodeList" />
-                      <node concept="2jxLKc" id="6X1kwjB_6xm" role="1tU5fm" />
-                    </node>
-                  </node>
-                </node>
-              </node>
-              <node concept="3_kTaI" id="6X1kwjB_6xn" role="2OqNvi" />
-            </node>
-          </node>
-        </node>
-        <node concept="3clFbH" id="6X1kwjB$WMh" role="3cqZAp" />
-        <node concept="3Aqczg" id="6X1kwjB$Pm9" role="3cqZAp">
-          <node concept="3A8Hvi" id="6X1kwjB$Pm3" role="3Aqpz8">
-            <node concept="aZ4PW" id="6X1kwjB$Pqn" role="3A8wtg">
-              <node concept="37vLTw" id="6X1kwjB$Pxa" role="aZ4eD">
-                <ref role="3cqZAo" node="6X1kwjB$Pn3" resolve="result" />
-              </node>
-            </node>
-            <node concept="HAVWr" id="5WBVN_MKq4p" role="3A8w4Q">
-              <node concept="1oi5UN" id="6X1kwjB_7LS" role="HAVW7">
-                <node concept="22Ky0T" id="6X1kwjB_7LT" role="lGtFl">
-                  <node concept="37vLTw" id="6X1kwjB_7LU" role="22Ky0K">
-                    <ref role="3cqZAo" node="6X1kwjB_6wy" resolve="listArr" />
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-        </node>
-      </node>
-      <node concept="2AHcQZ" id="6X1kwjBw$sb" role="2AJF6D">
-        <ref role="2AI5Lk" to="i348:4OKkcnfu_Am" resolve="RuleTemplateMethod" />
-        <node concept="2B6LJw" id="6X1kwjBw$up" role="2B76xF">
-          <ref role="2B6OnR" to="i348:4OKkcnfu_An" resolve="kind" />
-          <node concept="Rm8GO" id="6X1kwjBw$zo" role="2B70Vg">
-            <ref role="Rm8GQ" to="i348:4OKkcnfu_Ak" resolve="BODY" />
-            <ref role="1Px2BO" to="i348:4OKkcnfu_Ag" resolve="RuleTemplateMehodKind" />
-          </node>
-        </node>
-      </node>
-      <node concept="P$JXv" id="6X1kwjBIv2i" role="lGtFl">
-        <node concept="TZ5HA" id="6X1kwjBIv2j" role="TZ5H$">
-          <node concept="1dT_AC" id="6X1kwjBIv2k" role="1dT_Ay">
-            <property role="1dT_AB" value="Takes the list of lists, each representing a subtyping path, and converts these to terms." />
-          </node>
-        </node>
-        <node concept="TZ5HA" id="6X1kwjBIvdv" role="TZ5H$">
-          <node concept="1dT_AC" id="6X1kwjBIvdw" role="1dT_Ay">
-            <property role="1dT_AB" value="The SNodes corresponding to types are contained by inner lists, these are expanded using macro table." />
-          </node>
-        </node>
-        <node concept="TZ5HA" id="6X1kwjBIvgY" role="TZ5H$">
-          <node concept="1dT_AC" id="6X1kwjBIvgZ" role="1dT_Ay">
-            <property role="1dT_AB" value="The inner lists are also converted to terms." />
-          </node>
-        </node>
-      </node>
-    </node>
-    <node concept="2tJIrI" id="6X1kwjBw$d4" role="jymVt" />
-    <node concept="3Tm1VV" id="2zBk6uIjXRT" role="1B3o_S" />
-  </node>
   <node concept="1M$Gom" id="6hqFpWmMzld">
     <property role="TrG5h" value="Type Parameters" />
     <node concept="1$qIfQ" id="6hqFpWmN1Sp" role="1M$zYZ">
@@ -24813,6 +24637,82 @@
         </node>
       </node>
     </node>
+    <node concept="1nLNMY" id="6N2bvv_5WYW" role="1nK1Vg">
+      <property role="TrG5h" value="hasBound_trans" />
+      <node concept="3clFbS" id="6N2bvv_5WYX" role="1nLNMH">
+        <node concept="1nLNNL" id="6N2bvv_5X7A" role="3cqZAp">
+          <node concept="1nLNMm" id="6N2bvv_5X7B" role="1nLNNK">
+            <node concept="3Aq93q" id="6N2bvv_5X85" role="1nLNMb">
+              <property role="3ArMco" value="true" />
+              <node concept="3I6sU6" id="6N2bvv_5X86" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_5Xbp" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_5Xbo" role="3I6s78">
+                    <ref role="3AqCNq" node="5310cdpUCuT" resolve="hasBound" />
+                    <node concept="a7P8L" id="6N2bvv_5XbT" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_5X9y" resolve="S" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_5XcP" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_5Xa0" resolve="T" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq93q" id="6N2bvv_5Xdk" role="1nLNMb">
+              <property role="3ArMco" value="true" />
+              <node concept="3I6sU6" id="6N2bvv_5Xdl" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_5XdU" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_5XdT" role="3I6s78">
+                    <ref role="3AqCNq" node="5310cdpUCuT" resolve="hasBound" />
+                    <node concept="a7P8L" id="6N2bvv_5Xeo" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_5Xa0" resolve="T" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_5XeS" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_5Xau" resolve="U" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="0eUR_" id="6N2bvv_5X8_" role="0UC6o">
+              <node concept="3NuqgR" id="6N2bvv_5X9x" role="0eVf_">
+                <node concept="aZer4" id="6N2bvv_5X9y" role="3XD1gS">
+                  <property role="TrG5h" value="S" />
+                </node>
+                <node concept="aZer4" id="6N2bvv_5Xa0" role="3XD1gS">
+                  <property role="TrG5h" value="T" />
+                </node>
+                <node concept="aZer4" id="6N2bvv_5Xau" role="3XD1gS">
+                  <property role="TrG5h" value="U" />
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="6N2bvv_5Xfn" role="1nLNMd">
+              <node concept="3I6sU6" id="6N2bvv_5Xfo" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_5XfR" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_5XfQ" role="3I6s78">
+                    <ref role="3AqCNq" node="5310cdpUCuT" resolve="hasBound" />
+                    <node concept="a7P8L" id="6N2bvv_5Xgl" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_5X9y" resolve="S" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_5XgP" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_5Xau" resolve="U" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="cBwPQ" id="6N2bvv_7$wu" role="1nLFYo">
+        <node concept="3clFbS" id="6N2bvv_7$wv" role="16YjZG">
+          <node concept="3clFbF" id="6N2bvv_7$wY" role="3cqZAp">
+            <node concept="3clFbT" id="6N2bvv_7$wX" role="3clFbG" />
+          </node>
+        </node>
+      </node>
+    </node>
     <node concept="1nLNMY" id="5moyjRHpI84" role="1nK1Vg">
       <property role="TrG5h" value="hasBound_stringType" />
       <node concept="3clFbS" id="5moyjRHpI85" role="1nLNMH">
@@ -25555,13 +25455,8 @@
     <node concept="ns1x$" id="6EY0p2zs5$T" role="ns1xc">
       <property role="TrG5h" value="intersectionType" />
       <node concept="nspSf" id="6EY0p2zs5$U" role="ns1xx">
-        <node concept="nstbe" id="6EY0p2zs5$W" role="nspSe">
-          <property role="TrG5h" value="left" />
-          <property role="nspS5" value="false" />
-        </node>
-        <node concept="nstbe" id="6EY0p2zs5$X" role="nspSe">
-          <property role="TrG5h" value="right" />
-          <property role="nspS5" value="false" />
+        <node concept="nsiOd" id="6N2bvv_fHBX" role="nspSe">
+          <property role="TrG5h" value="parameter" />
         </node>
       </node>
     </node>
@@ -25807,32 +25702,6 @@
       <node concept="nspSf" id="JOGAOsVt3d" role="ns1xx" />
     </node>
   </node>
-  <node concept="312cEu" id="5_6ImQZ8j9D">
-    <property role="TrG5h" value="SolverUtil" />
-    <node concept="2tJIrI" id="5_6ImQZ8j9N" role="jymVt" />
-    <node concept="2YIFZL" id="5_6ImQZ8ja0" role="jymVt">
-      <property role="TrG5h" value="fail" />
-      <node concept="3cqZAl" id="5_6ImQZ8ja2" role="3clF45" />
-      <node concept="3Tm1VV" id="5_6ImQZ8ja3" role="1B3o_S" />
-      <node concept="3clFbS" id="5_6ImQZ8ja4" role="3clF47">
-        <node concept="YS8fn" id="5_6ImQZ8jaz" role="3cqZAp">
-          <node concept="2ShNRf" id="5_6ImQZ8jaX" role="YScLw">
-            <node concept="1pGfFk" id="5_6ImQZ8l0Z" role="2ShVmc">
-              <ref role="37wK5l" to="w7la:~EvaluationFailureException.&lt;init&gt;(java.lang.String)" resolve="EvaluationFailureException" />
-              <node concept="37vLTw" id="5_6ImQZ8l2j" role="37wK5m">
-                <ref role="3cqZAo" node="5_6ImQZ8l1u" resolve="message" />
-              </node>
-            </node>
-          </node>
-        </node>
-      </node>
-      <node concept="37vLTG" id="5_6ImQZ8l1u" role="3clF46">
-        <property role="TrG5h" value="message" />
-        <node concept="17QB3L" id="5_6ImQZ8l1t" role="1tU5fm" />
-      </node>
-    </node>
-    <node concept="3Tm1VV" id="5_6ImQZ8j9E" role="1B3o_S" />
-  </node>
   <node concept="AVZre" id="35YJGAK4DLL">
     <property role="3GE5qa" value="relation" />
     <property role="TrG5h" value="Binary" />
@@ -27523,7 +27392,6 @@
                     </node>
                   </node>
                 </node>
-                <node concept="3clFbH" id="7XRk2O3zf$H" role="3cqZAp" />
                 <node concept="3clFbH" id="7XRk2O3zf$Z" role="3cqZAp" />
               </node>
               <node concept="2OqwBi" id="7XRk2O3zfpV" role="3eO9$A">
@@ -29357,5 +29225,309 @@
       </node>
     </node>
   </node>
+  <node concept="AVZre" id="6N2bvv_5VYN">
+    <property role="3GE5qa" value="relation" />
+    <property role="TrG5h" value="Resolve" />
+    <ref role="2YbDB9" node="5310cdpUCzb" resolve="HasBound" />
+    <node concept="1nLNMY" id="6N2bvv_e2tu" role="1nK1Vg">
+      <property role="TrG5h" value="lowerTarget_bound_trans" />
+      <node concept="3clFbS" id="6N2bvv_e2tv" role="1nLNMH">
+        <node concept="1nLNNL" id="6N2bvv_e2z1" role="3cqZAp">
+          <node concept="1nLNMm" id="6N2bvv_e2z3" role="1nLNNK">
+            <node concept="3Aq9E8" id="6N2bvv_e2TC" role="1nLNMd">
+              <node concept="3I6sU6" id="6N2bvv_e2TD" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_e2W0" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_e2VZ" role="3I6s78">
+                    <ref role="3AqCNq" node="3Qp4N06bUPu" resolve="convertsTo" />
+                    <node concept="a7P8L" id="6N2bvv_e2WV" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e2CJ" resolve="Trg" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_e2Xs" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e2E_" resolve="Bnd" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq93q" id="6N2bvv_e2Aq" role="1nLNMb">
+              <property role="3ArMco" value="true" />
+              <node concept="3I6sU6" id="6N2bvv_e2Ar" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_e2AY" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_e2AX" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_crdr" resolve="hasLowerTarget" />
+                    <node concept="a7P8L" id="6N2bvv_e2Id" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e2$x" resolve="TVar" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_e2J9" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e2CJ" resolve="Trg" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq93q" id="6N2bvv_e2QH" role="1nLNMb">
+              <property role="3ArMco" value="true" />
+              <node concept="3I6sU6" id="6N2bvv_e2QI" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_e2_0" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_e2$Z" role="3I6s78">
+                    <ref role="3AqCNq" node="5310cdpUCuT" resolve="hasBound" />
+                    <node concept="a7P8L" id="6N2bvv_e2Gn" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e2$x" resolve="TVar" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_e2Hj" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e2E_" resolve="Bnd" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="0eUR_" id="6N2bvv_e2$3" role="0UC6o">
+              <node concept="3NuqgR" id="6N2bvv_e2$w" role="0eVf_">
+                <node concept="aZer4" id="6N2bvv_e2$x" role="3XD1gS">
+                  <property role="TrG5h" value="TVar" />
+                </node>
+                <node concept="aZer4" id="6N2bvv_e2E_" role="3XD1gS">
+                  <property role="TrG5h" value="Bnd" />
+                </node>
+                <node concept="aZer4" id="6N2bvv_e2CJ" role="3XD1gS">
+                  <property role="TrG5h" value="Trg" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="6N2bvv_e2yz" role="3cqZAp" />
+      </node>
+    </node>
+    <node concept="1nLNMY" id="6N2bvv_e2Zg" role="1nK1Vg">
+      <property role="TrG5h" value="lowerTarget_lub" />
+      <node concept="3clFbS" id="6N2bvv_e2Zh" role="1nLNMH">
+        <node concept="1nLNNL" id="6N2bvv_e35x" role="3cqZAp">
+          <node concept="1nLNMm" id="6N2bvv_e35y" role="1nLNNK">
+            <node concept="3Aq93q" id="6N2bvv_e360" role="1nLNMb">
+              <node concept="3I6sU6" id="6N2bvv_e361" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_e39F" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_e39E" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_crdr" resolve="hasLowerTarget" />
+                    <node concept="a7P8L" id="6N2bvv_e3b4" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e36Y" resolve="TVar" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_e3b_" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e38i" resolve="S" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq93q" id="6N2bvv_e3c4" role="1nLNMb">
+              <node concept="3I6sU6" id="6N2bvv_e3c5" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_e3cE" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_e3cD" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_crdr" resolve="hasLowerTarget" />
+                    <node concept="a7P8L" id="6N2bvv_e3d_" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e36Y" resolve="TVar" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_e3e6" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e38K" resolve="T" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="0eUR_" id="6N2bvv_e36w" role="0UC6o">
+              <node concept="3NuqgR" id="6N2bvv_e36X" role="0eVf_">
+                <node concept="aZer4" id="6N2bvv_e36Y" role="3XD1gS">
+                  <property role="TrG5h" value="TVar" />
+                </node>
+                <node concept="aZer4" id="6N2bvv_e38i" role="3XD1gS">
+                  <property role="TrG5h" value="S" />
+                </node>
+                <node concept="aZer4" id="6N2bvv_e38K" role="3XD1gS">
+                  <property role="TrG5h" value="T" />
+                </node>
+                <node concept="aZer4" id="6N2bvv_e3fW" role="3XD1gS">
+                  <property role="TrG5h" value="Lub" />
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="6N2bvv_e3ft" role="1nLNMd">
+              <node concept="3I6sU6" id="6N2bvv_e3fu" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_e3hj" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_e3hi" role="3I6s78">
+                    <ref role="3AqCNq" node="2q0gzCFHesp" resolve="lub" />
+                    <node concept="a7P8L" id="6N2bvv_e3ie" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e3fW" resolve="Lub" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_e3ja" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e38i" resolve="S" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_e3jH" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e38K" resolve="T" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="3I6s7M" id="6N2bvv_e3km" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_e3kk" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_crdr" resolve="hasLowerTarget" />
+                    <node concept="a7P8L" id="6N2bvv_e3lm" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e36Y" resolve="TVar" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_e3lR" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_e3fW" resolve="Lub" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="1nLNMY" id="6N2bvv_5W96" role="1nK1Vg">
+      <property role="TrG5h" value="resolve_default" />
+      <node concept="3clFbS" id="6N2bvv_5W97" role="1nLNMH">
+        <node concept="1nLNNL" id="6N2bvv_5Wc$" role="3cqZAp">
+          <node concept="1nLNMm" id="6N2bvv_5WcA" role="1nLNNK">
+            <node concept="3Aq93q" id="6N2bvv_5Wko" role="1nLNMb">
+              <node concept="3I6sU6" id="6N2bvv_5Wkp" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_5WkY" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_5WkX" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_5W0X" resolve="resolve" />
+                    <node concept="a7P8L" id="6N2bvv_5WlT" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_5We3" resolve="TypeVar" />
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+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq93q" id="6N2bvv_5Wd5" role="1nLNMb">
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+                <node concept="3I6s7M" id="6N2bvv_5WeX" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_5WeW" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_9b_6" resolve="hasUpperTarget" />
+                    <node concept="a7P8L" id="6N2bvv_5WfS" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_5We3" resolve="TypeVar" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_5WiY" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_5WhE" resolve="Tgr" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="0eUR_" id="6N2bvv_5Wd_" role="0UC6o">
+              <node concept="3NuqgR" id="6N2bvv_5We2" role="0eVf_">
+                <node concept="aZer4" id="6N2bvv_5We3" role="3XD1gS">
+                  <property role="TrG5h" value="TypeVar" />
+                </node>
+                <node concept="aZer4" id="6N2bvv_5WhE" role="3XD1gS">
+                  <property role="TrG5h" value="Tgr" />
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="6N2bvv_5Wjt" role="1nLNMd">
+              <node concept="3I6sU6" id="6N2bvv_5Wju" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_5Wok" role="3I6sU7">
+                  <node concept="3A8Hvi" id="6N2bvv_5Woh" role="3I6s78">
+                    <node concept="a7P8L" id="6N2bvv_5WoO" role="3A8wtg">
+                      <ref role="a7OzE" node="6N2bvv_5We3" resolve="TypeVar" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_5Wpi" role="3A8w4Q">
+                      <ref role="a7OzE" node="6N2bvv_5WhE" resolve="Tgr" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="6N2bvv_e2mV" role="3cqZAp" />
+        <node concept="1nLNNL" id="6N2bvv_e2lr" role="3cqZAp">
+          <node concept="1nLNMm" id="6N2bvv_e2ls" role="1nLNNK">
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+              <node concept="3I6sU6" id="6N2bvv_e2lu" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_e2lv" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_e2lw" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_5W0X" resolve="resolve" />
+                    <node concept="a7P8L" id="6N2bvv_e2pP" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_5We3" resolve="TypeVar" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq93q" id="6N2bvv_e2ly" role="1nLNMb">
+              <node concept="3I6sU6" id="6N2bvv_e2lz" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_e2l$" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6N2bvv_e2l_" role="3I6s78">
+                    <ref role="3AqCNq" node="6N2bvv_crdr" resolve="hasLowerTarget" />
+                    <node concept="a7P8L" id="6N2bvv_e2qj" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_5We3" resolve="TypeVar" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_e2qn" role="3AunhB">
+                      <ref role="a7OzE" node="6N2bvv_5WhE" resolve="Tgr" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3Aq9E8" id="6N2bvv_e2lG" role="1nLNMd">
+              <node concept="3I6sU6" id="6N2bvv_e2lH" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6N2bvv_e2lI" role="3I6sU7">
+                  <node concept="3A8Hvi" id="6N2bvv_e2lJ" role="3I6s78">
+                    <node concept="a7P8L" id="6N2bvv_e2qr" role="3A8wtg">
+                      <ref role="a7OzE" node="6N2bvv_5We3" resolve="TypeVar" />
+                    </node>
+                    <node concept="a7P8L" id="6N2bvv_e2pn" role="3A8w4Q">
+                      <ref role="a7OzE" node="6N2bvv_5WhE" resolve="Tgr" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="3AqmO8" id="6N2bvv_9b_6" role="8PkJo">
+      <property role="TrG5h" value="hasUpperTarget" />
+      <node concept="1zAUYm" id="6N2bvv_9bAS" role="1zAUyy">
+        <property role="TrG5h" value="var" />
+      </node>
+      <node concept="1zAUYm" id="6N2bvv_9bCb" role="1zAUyy">
+        <property role="TrG5h" value="uptrg" />
+      </node>
+      <node concept="1zAsnw" id="6N2bvv_9bFm" role="lGtFl">
+        <node concept="3SKdUq" id="6N2bvv_9bFn" role="27qylF">
+          <property role="3SKdUp" value="a type var has a target" />
+        </node>
+      </node>
+    </node>
+    <node concept="3AqmO8" id="6N2bvv_crdr" role="8PkJo">
+      <property role="TrG5h" value="hasLowerTarget" />
+      <node concept="1zAUYm" id="6N2bvv_crds" role="1zAUyy">
+        <property role="TrG5h" value="var" />
+      </node>
+      <node concept="1zAUYm" id="6N2bvv_crdt" role="1zAUyy">
+        <property role="TrG5h" value="lotrg" />
+      </node>
+      <node concept="1zAsnw" id="6N2bvv_crdu" role="lGtFl">
+        <node concept="3SKdUq" id="6N2bvv_crdv" role="27qylF">
+          <property role="3SKdUp" value="a type var has a target" />
+        </node>
+      </node>
+    </node>
+    <node concept="3AqmO8" id="6N2bvv_5W0X" role="8PkJo">
+      <property role="TrG5h" value="resolve" />
+      <node concept="1zAUYm" id="6N2bvv_5W2F" role="1zAUyy">
+        <property role="TrG5h" value="var" />
+      </node>
+      <node concept="1zAsnw" id="6N2bvv_5W3z" role="lGtFl">
+        <node concept="3SKdUq" id="6N2bvv_5W3$" role="27qylF">
+          <property role="3SKdUp" value="start resolving a type variable" />
+        </node>
+      </node>
+    </node>
+  </node>
 </model>
 
diff --git a/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.types@tests.mps b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.types@tests.mps
index cc434046..747189fc 100644
--- a/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.types@tests.mps
+++ b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.types@tests.mps
@@ -47,6 +47,14 @@
       <concept id="1225978065297" name="jetbrains.mps.lang.test.structure.SimpleNodeTest" flags="ng" index="1LZb2c" />
     </language>
     <language id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage">
+      <concept id="1080223426719" name="jetbrains.mps.baseLanguage.structure.OrExpression" flags="nn" index="22lmx$" />
+      <concept id="1082485599095" name="jetbrains.mps.baseLanguage.structure.BlockStatement" flags="nn" index="9aQIb">
+        <child id="1082485599096" name="statements" index="9aQI4" />
+      </concept>
+      <concept id="1215693861676" name="jetbrains.mps.baseLanguage.structure.BaseAssignmentExpression" flags="nn" index="d038R">
+        <child id="1068498886297" name="rValue" index="37vLTx" />
+        <child id="1068498886295" name="lValue" index="37vLTJ" />
+      </concept>
       <concept id="4836112446988635817" name="jetbrains.mps.baseLanguage.structure.UndefinedType" flags="in" index="2jxLKc" />
       <concept id="1202948039474" name="jetbrains.mps.baseLanguage.structure.InstanceMethodCallOperation" flags="nn" index="liA8E" />
       <concept id="1465982738277781862" name="jetbrains.mps.baseLanguage.structure.PlaceholderMember" flags="ng" index="2tJIrI" />
@@ -72,9 +80,6 @@
       <concept id="1070475926800" name="jetbrains.mps.baseLanguage.structure.StringLiteral" flags="nn" index="Xl_RD">
         <property id="1070475926801" name="value" index="Xl_RC" />
       </concept>
-      <concept id="1182160077978" name="jetbrains.mps.baseLanguage.structure.AnonymousClassCreator" flags="nn" index="YeOm9">
-        <child id="1182160096073" name="cls" index="YeSDq" />
-      </concept>
       <concept id="1081236700937" name="jetbrains.mps.baseLanguage.structure.StaticMethodCall" flags="nn" index="2YIFZM">
         <reference id="1144433194310" name="classConcept" index="1Pybhc" />
       </concept>
@@ -85,9 +90,6 @@
         <child id="1081256993305" name="classType" index="2ZW6by" />
         <child id="1081256993304" name="leftExpression" index="2ZW6bz" />
       </concept>
-      <concept id="1070533707846" name="jetbrains.mps.baseLanguage.structure.StaticFieldReference" flags="nn" index="10M0yZ">
-        <reference id="1144433057691" name="classifier" index="1PxDUh" />
-      </concept>
       <concept id="1070534058343" name="jetbrains.mps.baseLanguage.structure.NullLiteral" flags="nn" index="10Nm6u" />
       <concept id="1070534644030" name="jetbrains.mps.baseLanguage.structure.BooleanType" flags="in" index="10P_77" />
       <concept id="1070534934090" name="jetbrains.mps.baseLanguage.structure.CastExpression" flags="nn" index="10QFUN">
@@ -102,17 +104,11 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1109279763828" name="jetbrains.mps.baseLanguage.structure.TypeVariableDeclaration" flags="ng" index="16euLQ" />
-      <concept id="1109279851642" name="jetbrains.mps.baseLanguage.structure.GenericDeclaration" flags="ng" index="16eOlS">
-        <child id="1109279881614" name="typeVariableDeclaration" index="16eVyc" />
-      </concept>
-      <concept id="1109283449304" name="jetbrains.mps.baseLanguage.structure.TypeVariableReference" flags="in" index="16syzq">
-        <reference id="1109283546497" name="typeVariableDeclaration" index="16sUi3" />
-      </concept>
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
         <reference id="1068581517664" name="variableDeclaration" index="3cqZAo" />
       </concept>
       <concept id="1068498886292" name="jetbrains.mps.baseLanguage.structure.ParameterDeclaration" flags="ir" index="37vLTG" />
+      <concept id="1068498886294" name="jetbrains.mps.baseLanguage.structure.AssignmentExpression" flags="nn" index="37vLTI" />
       <concept id="4972933694980447171" name="jetbrains.mps.baseLanguage.structure.BaseVariableDeclaration" flags="ng" index="19Szcq">
         <child id="5680397130376446158" name="type" index="1tU5fm" />
       </concept>
@@ -123,14 +119,14 @@
         <child id="1068580123134" name="parameter" index="3clF46" />
         <child id="1068580123135" name="body" index="3clF47" />
       </concept>
-      <concept id="1068580123165" name="jetbrains.mps.baseLanguage.structure.InstanceMethodDeclaration" flags="ig" index="3clFb_">
-        <property id="1178608670077" name="isAbstract" index="1EzhhJ" />
-      </concept>
+      <concept id="1068580123165" name="jetbrains.mps.baseLanguage.structure.InstanceMethodDeclaration" flags="ig" index="3clFb_" />
+      <concept id="1068580123152" name="jetbrains.mps.baseLanguage.structure.EqualsExpression" flags="nn" index="3clFbC" />
       <concept id="1068580123155" name="jetbrains.mps.baseLanguage.structure.ExpressionStatement" flags="nn" index="3clFbF">
         <child id="1068580123156" name="expression" index="3clFbG" />
       </concept>
       <concept id="1068580123157" name="jetbrains.mps.baseLanguage.structure.Statement" flags="nn" index="3clFbH" />
       <concept id="1068580123159" name="jetbrains.mps.baseLanguage.structure.IfStatement" flags="nn" index="3clFbJ">
+        <child id="1082485599094" name="ifFalseStatement" index="9aQIa" />
         <child id="1068580123160" name="condition" index="3clFbw" />
         <child id="1068580123161" name="ifTrue" index="3clFbx" />
       </concept>
@@ -140,6 +136,7 @@
       <concept id="1068580123137" name="jetbrains.mps.baseLanguage.structure.BooleanConstant" flags="nn" index="3clFbT">
         <property id="1068580123138" name="value" index="3clFbU" />
       </concept>
+      <concept id="1068580123140" name="jetbrains.mps.baseLanguage.structure.ConstructorDeclaration" flags="ig" index="3clFbW" />
       <concept id="1068581242878" name="jetbrains.mps.baseLanguage.structure.ReturnStatement" flags="nn" index="3cpWs6">
         <child id="1068581517676" name="expression" index="3cqZAk" />
       </concept>
@@ -158,13 +155,13 @@
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
       </concept>
-      <concept id="1212685548494" name="jetbrains.mps.baseLanguage.structure.ClassCreator" flags="nn" index="1pGfFk">
-        <child id="1212687122400" name="typeParameter" index="1pMfVU" />
-      </concept>
+      <concept id="1073063089578" name="jetbrains.mps.baseLanguage.structure.SuperMethodCall" flags="nn" index="3nyPlj" />
+      <concept id="1212685548494" name="jetbrains.mps.baseLanguage.structure.ClassCreator" flags="nn" index="1pGfFk" />
       <concept id="1107461130800" name="jetbrains.mps.baseLanguage.structure.Classifier" flags="ng" index="3pOWGL">
         <property id="521412098689998745" name="nonStatic" index="2bfB8j" />
         <child id="5375687026011219971" name="member" index="jymVt" unordered="true" />
       </concept>
+      <concept id="7812454656619025412" name="jetbrains.mps.baseLanguage.structure.LocalMethodCall" flags="nn" index="1rXfSq" />
       <concept id="1107535904670" name="jetbrains.mps.baseLanguage.structure.ClassifierType" flags="in" index="3uibUv">
         <reference id="1107535924139" name="classifier" index="3uigEE" />
         <child id="1109201940907" name="parameter" index="11_B2D" />
@@ -193,9 +190,7 @@
       </concept>
       <concept id="1146644602865" name="jetbrains.mps.baseLanguage.structure.PublicVisibility" flags="nn" index="3Tm1VV" />
       <concept id="1146644623116" name="jetbrains.mps.baseLanguage.structure.PrivateVisibility" flags="nn" index="3Tm6S6" />
-      <concept id="1170345865475" name="jetbrains.mps.baseLanguage.structure.AnonymousClass" flags="ig" index="1Y3b0j">
-        <reference id="1170346070688" name="classifier" index="1Y3XeK" />
-      </concept>
+      <concept id="1146644641414" name="jetbrains.mps.baseLanguage.structure.ProtectedVisibility" flags="nn" index="3Tmbuc" />
     </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
       <concept id="1199569711397" name="jetbrains.mps.baseLanguage.closures.structure.ClosureLiteral" flags="nn" index="1bVj0M">
@@ -219,13 +214,15 @@
       </concept>
     </language>
     <language id="f61473f9-130f-42f6-b98d-6c438812c2f6" name="jetbrains.mps.baseLanguage.unitTest">
+      <concept id="7080278351417106679" name="jetbrains.mps.baseLanguage.unitTest.structure.AssertIsNotNull" flags="nn" index="2Hmddi">
+        <child id="7080278351417106681" name="expression" index="2Hmdds" />
+      </concept>
       <concept id="1171931690126" name="jetbrains.mps.baseLanguage.unitTest.structure.TestMethod" flags="ig" index="3s$Bmu">
         <property id="1171931690128" name="methodName" index="3s$Bm0" />
       </concept>
       <concept id="1171931851043" name="jetbrains.mps.baseLanguage.unitTest.structure.BTestCase" flags="ig" index="3s_ewN">
         <property id="1171931851045" name="testCaseName" index="3s_ewP" />
         <child id="1171931851044" name="testMethodList" index="3s_ewO" />
-        <child id="8243879142738613220" name="afterTest" index="1KhZu3" />
         <child id="8243879142738613219" name="beforeTest" index="1KhZu4" />
       </concept>
       <concept id="1171931858461" name="jetbrains.mps.baseLanguage.unitTest.structure.TestMethodList" flags="ng" index="3s_gsd">
@@ -235,7 +232,6 @@
         <child id="1171981057159" name="condition" index="3vwVQn" />
       </concept>
       <concept id="8243879142738608185" name="jetbrains.mps.baseLanguage.unitTest.structure.BeforeTest" flags="in" index="1KhYhu" />
-      <concept id="8243879142738613213" name="jetbrains.mps.baseLanguage.unitTest.structure.AfterTest" flags="in" index="1KhZuU" />
     </language>
     <language id="35320f26-77cb-4c55-be9f-a97a27770af1" name="jetbrains.mps.logic">
       <concept id="2105510410850132386" name="jetbrains.mps.logic.structure.ListNode" flags="ng" index="KCUsM">
@@ -1106,61 +1102,11 @@
   </node>
   <node concept="3s_ewN" id="7t5VLKGALSG">
     <property role="3s_ewP" value="Lub" />
-    <node concept="312cEg" id="5jCHAT2dJM2" role="jymVt">
-      <property role="TrG5h" value="NO_CONTEXT" />
-      <node concept="3Tm6S6" id="5jCHAT2dJM3" role="1B3o_S" />
-      <node concept="3uibUv" id="5jCHAT2dKeE" role="1tU5fm">
-        <ref role="3uigEE" to="bj13:~LogicalContext" resolve="LogicalContext" />
-      </node>
-      <node concept="2ShNRf" id="5jCHAT2dKg0" role="33vP2m">
-        <node concept="YeOm9" id="5jCHAT2dKnF" role="2ShVmc">
-          <node concept="1Y3b0j" id="5jCHAT2dKnI" role="YeSDq">
-            <property role="2bfB8j" value="true" />
-            <ref role="1Y3XeK" to="bj13:~LogicalContext" resolve="LogicalContext" />
-            <ref role="37wK5l" to="wyt6:~Object.&lt;init&gt;()" resolve="Object" />
-            <node concept="3Tm1VV" id="5jCHAT2dKnJ" role="1B3o_S" />
-            <node concept="3clFb_" id="5jCHAT2dKnK" role="jymVt">
-              <property role="1EzhhJ" value="false" />
-              <property role="TrG5h" value="variable" />
-              <property role="DiZV1" value="false" />
-              <property role="od$2w" value="false" />
-              <node concept="3Tm1VV" id="5jCHAT2dKnL" role="1B3o_S" />
-              <node concept="16euLQ" id="5jCHAT2dKnN" role="16eVyc">
-                <property role="TrG5h" value="V" />
-              </node>
-              <node concept="3uibUv" id="5jCHAT2dKnO" role="3clF45">
-                <ref role="3uigEE" to="bj13:~Logical" resolve="Logical" />
-                <node concept="16syzq" id="5jCHAT2dKnP" role="11_B2D">
-                  <ref role="16sUi3" node="5jCHAT2dKnN" resolve="V" />
-                </node>
-              </node>
-              <node concept="37vLTG" id="5jCHAT2dKnQ" role="3clF46">
-                <property role="TrG5h" value="p0" />
-                <node concept="3uibUv" id="5jCHAT2dKnR" role="1tU5fm">
-                  <ref role="3uigEE" to="bj13:~MetaLogical" resolve="MetaLogical" />
-                  <node concept="16syzq" id="5jCHAT2dKnS" role="11_B2D">
-                    <ref role="16sUi3" node="5jCHAT2dKnN" resolve="V" />
-                  </node>
-                </node>
-              </node>
-              <node concept="3clFbS" id="5jCHAT2dKnT" role="3clF47">
-                <node concept="YS8fn" id="5jCHAT2dKwo" role="3cqZAp">
-                  <node concept="2ShNRf" id="5jCHAT2dKxx" role="YScLw">
-                    <node concept="1pGfFk" id="5jCHAT2dKLh" role="2ShVmc">
-                      <ref role="37wK5l" to="wyt6:~UnsupportedOperationException.&lt;init&gt;(java.lang.String)" resolve="UnsupportedOperationException" />
-                      <node concept="Xl_RD" id="5jCHAT2dKOW" role="37wK5m">
-                        <property role="Xl_RC" value="not implemented" />
-                      </node>
-                    </node>
-                  </node>
-                </node>
-              </node>
-              <node concept="2AHcQZ" id="5jCHAT2dNAi" role="2AJF6D">
-                <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
-              </node>
-            </node>
-          </node>
-        </node>
+    <node concept="312cEg" id="2rIdnPtI3kj" role="jymVt">
+      <property role="TrG5h" value="lubSolver" />
+      <node concept="3Tm6S6" id="2rIdnPtI3kk" role="1B3o_S" />
+      <node concept="3uibUv" id="2rIdnPtI3kX" role="1tU5fm">
+        <ref role="3uigEE" node="2rIdnPtI2$w" resolve="TestingLubHelper" />
       </node>
     </node>
     <node concept="3Tm1VV" id="7t5VLKGALSN" role="1B3o_S" />
@@ -1281,74 +1227,6 @@
             </node>
           </node>
           <node concept="3clFbH" id="7t5VLKGALTs" role="3cqZAp" />
-          <node concept="3cpWs8" id="7t5VLKGALTt" role="3cqZAp">
-            <node concept="3cpWsn" id="7t5VLKGALTu" role="3cpWs9">
-              <property role="TrG5h" value="var" />
-              <node concept="3uibUv" id="6yEjedm7dtr" role="1tU5fm">
-                <ref role="3uigEE" to="zx3l:~LogicalImpl" resolve="LogicalImpl" />
-                <node concept="3uibUv" id="6yEjedm7jXZ" role="11_B2D">
-                  <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-                </node>
-              </node>
-              <node concept="2ShNRf" id="7t5VLKGALTw" role="33vP2m">
-                <node concept="1pGfFk" id="6yEjedm7cy2" role="2ShVmc">
-                  <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.String)" resolve="LogicalImpl" />
-                  <node concept="Xl_RD" id="6yEjedm7cQw" role="37wK5m">
-                    <property role="Xl_RC" value="var" />
-                  </node>
-                  <node concept="3uibUv" id="6yEjedm7hYU" role="1pMfVU">
-                    <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-          <node concept="3cpWs8" id="7t5VLKGALTz" role="3cqZAp">
-            <node concept="3cpWsn" id="7t5VLKGALT$" role="3cpWs9">
-              <property role="TrG5h" value="success" />
-              <node concept="10P_77" id="7t5VLKGALT_" role="1tU5fm" />
-              <node concept="2YIFZM" id="20Ay2Vfc3qn" role="33vP2m">
-                <ref role="37wK5l" to="kqnc:5H6hZahmloU" resolve="findLub" />
-                <ref role="1Pybhc" to="kqnc:5H6hZahmlon" resolve="LubSolver" />
-                <node concept="37vLTw" id="7t5VLKGALTB" role="37wK5m">
-                  <ref role="3cqZAo" node="7t5VLKGALTu" resolve="var" />
-                </node>
-                <node concept="2ShNRf" id="7t5VLKGALTC" role="37wK5m">
-                  <node concept="1pGfFk" id="7t5VLKGALTD" role="2ShVmc">
-                    <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.Object)" resolve="LogicalImpl" />
-                    <node concept="37vLTw" id="7t5VLKGALTE" role="37wK5m">
-                      <ref role="3cqZAo" node="7t5VLKGALSU" resolve="left" />
-                    </node>
-                  </node>
-                </node>
-                <node concept="2ShNRf" id="7t5VLKGALTF" role="37wK5m">
-                  <node concept="1pGfFk" id="7t5VLKGALTG" role="2ShVmc">
-                    <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.Object)" resolve="LogicalImpl" />
-                    <node concept="37vLTw" id="7t5VLKGALTH" role="37wK5m">
-                      <ref role="3cqZAo" node="7t5VLKGALTe" resolve="right" />
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-          <node concept="3clFbH" id="4JRKVCv8abP" role="3cqZAp" />
-          <node concept="3vwNmj" id="4JRKVCv8a67" role="3cqZAp">
-            <node concept="37vLTw" id="4JRKVCv8a68" role="3vwVQn">
-              <ref role="3cqZAo" node="7t5VLKGALT$" resolve="success" />
-            </node>
-          </node>
-          <node concept="3vwNmj" id="4JRKVCv8a69" role="3cqZAp">
-            <node concept="2OqwBi" id="4JRKVCv8a6a" role="3vwVQn">
-              <node concept="37vLTw" id="4JRKVCv8a6b" role="2Oq$k0">
-                <ref role="3cqZAo" node="7t5VLKGALTu" resolve="var" />
-              </node>
-              <node concept="liA8E" id="4JRKVCv8a6c" role="2OqNvi">
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-              </node>
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             <node concept="3cpWsn" id="4JRKVCv8a6f" role="3cpWs9">
               <property role="TrG5h" value="expect" />
@@ -1378,31 +1256,45 @@
               </node>
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-            <node concept="2OqwBi" id="5jPBdK_vpp" role="3clFbG">
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-                  <ref role="37wK5l" to="w7la:~EvaluationSession.current():jetbrains.mps.logic.reactor.evaluation.EvaluationSession" resolve="current" />
+          <node concept="3cpWs8" id="2rIdnPtxO63" role="3cqZAp">
+            <node concept="3cpWsn" id="2rIdnPtxO64" role="3cpWs9">
+              <property role="TrG5h" value="lub" />
+              <node concept="3uibUv" id="2rIdnPtxO60" role="1tU5fm">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+              </node>
+              <node concept="2OqwBi" id="2rIdnPtK1q4" role="33vP2m">
+                <node concept="37vLTw" id="2rIdnPtK1fb" role="2Oq$k0">
+                  <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
                 </node>
-                <node concept="liA8E" id="5jPBdK_voQ" role="2OqNvi">
-                  <ref role="37wK5l" to="w7la:~EvaluationSession.sessionSolver():jetbrains.mps.logic.reactor.evaluation.SessionSolver" resolve="sessionSolver" />
+                <node concept="liA8E" id="2rIdnPtK1Er" role="2OqNvi">
+                  <ref role="37wK5l" node="2rIdnPtJYwS" resolve="findRawLubInTest" />
+                  <node concept="37vLTw" id="2rIdnPtK1F3" role="37wK5m">
+                    <ref role="3cqZAo" node="7t5VLKGALSU" resolve="left" />
+                  </node>
+                  <node concept="37vLTw" id="2rIdnPtK1MP" role="37wK5m">
+                    <ref role="3cqZAo" node="7t5VLKGALTe" resolve="right" />
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                 </node>
               </node>
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-                <ref role="37wK5l" to="w7la:~SessionSolver.tell(jetbrains.mps.logic.reactor.program.AndItem,jetbrains.mps.logic.reactor.logical.LogicalContext):void" resolve="tell" />
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-                  <ref role="1Pybhc" to="cxk7:2GO7tyJVmP4" resolve="UnificationPredicate" />
-                  <node concept="37vLTw" id="5jPBdK_vy4" role="37wK5m">
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-                  <node concept="37vLTw" id="5jPBdK_vy5" role="37wK5m">
-                    <ref role="3cqZAo" node="7t5VLKGALTu" resolve="var" />
-                  </node>
+            </node>
+          </node>
+          <node concept="2Hmddi" id="2rIdnPtxPDF" role="3cqZAp">
+            <node concept="37vLTw" id="2rIdnPtxPFy" role="2Hmdds">
+              <ref role="3cqZAo" node="2rIdnPtxO64" resolve="lub" />
+            </node>
+          </node>
+          <node concept="3vwNmj" id="2rIdnPtIbGu" role="3cqZAp">
+            <node concept="2OqwBi" id="2rIdnPtIcgg" role="3vwVQn">
+              <node concept="37vLTw" id="2rIdnPtIc2R" role="2Oq$k0">
+                <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
+              </node>
+              <node concept="liA8E" id="2rIdnPtIcz8" role="2OqNvi">
+                <ref role="37wK5l" node="2rIdnPtI2E7" resolve="matches" />
+                <node concept="37vLTw" id="2rIdnPtIczU" role="37wK5m">
+                  <ref role="3cqZAo" node="4JRKVCv8a6f" resolve="expect" />
                 </node>
-                <node concept="37vLTw" id="5jCHAT2i3xA" role="37wK5m">
-                  <ref role="3cqZAo" node="5jCHAT2dJM2" resolve="NO_CONTEXT" />
+                <node concept="37vLTw" id="2rIdnPtIddM" role="37wK5m">
+                  <ref role="3cqZAo" node="2rIdnPtxO64" resolve="lub" />
                 </node>
               </node>
             </node>
@@ -1539,74 +1431,6 @@
             </node>
           </node>
           <node concept="3clFbH" id="7t5VLKGALUx" role="3cqZAp" />
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-                <node concept="3uibUv" id="6yEjedm7RDW" role="11_B2D">
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-                  <node concept="Xl_RD" id="6yEjedm7RDZ" role="37wK5m">
-                    <property role="Xl_RC" value="var" />
-                  </node>
-                  <node concept="3uibUv" id="6yEjedm7RE0" role="1pMfVU">
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-                </node>
-              </node>
-            </node>
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-              <node concept="10P_77" id="6yEjedm7RE3" role="1tU5fm" />
-              <node concept="2YIFZM" id="20Ay2Vfc3qh" role="33vP2m">
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-                <ref role="1Pybhc" to="kqnc:5H6hZahmlon" resolve="LubSolver" />
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-                <ref role="3cqZAo" node="6yEjedm7RDU" resolve="var" />
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-              <node concept="liA8E" id="7t5VLKGALUT" role="2OqNvi">
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               <property role="TrG5h" value="expect" />
@@ -1636,31 +1460,45 @@
               </node>
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-                  <ref role="37wK5l" to="w7la:~EvaluationSession.current():jetbrains.mps.logic.reactor.evaluation.EvaluationSession" resolve="current" />
+          <node concept="3cpWs8" id="2rIdnPtK2nB" role="3cqZAp">
+            <node concept="3cpWsn" id="2rIdnPtK2nC" role="3cpWs9">
+              <property role="TrG5h" value="lub" />
+              <node concept="3uibUv" id="2rIdnPtK2nD" role="1tU5fm">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+              </node>
+              <node concept="2OqwBi" id="2rIdnPtK2nE" role="33vP2m">
+                <node concept="37vLTw" id="2rIdnPtK2nF" role="2Oq$k0">
+                  <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
                 </node>
-                <node concept="liA8E" id="5jPBdK_vXl" role="2OqNvi">
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+                <node concept="liA8E" id="2rIdnPtK2nG" role="2OqNvi">
+                  <ref role="37wK5l" node="2rIdnPtJYwS" resolve="findRawLubInTest" />
+                  <node concept="37vLTw" id="2rIdnPtK2nH" role="37wK5m">
+                    <ref role="3cqZAo" node="7t5VLKGALTU" resolve="left" />
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+                  <node concept="37vLTw" id="2rIdnPtK2nI" role="37wK5m">
+                    <ref role="3cqZAo" node="7t5VLKGALUe" resolve="right" />
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                 </node>
               </node>
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-                    <ref role="3cqZAo" node="6yEjedm7RDU" resolve="var" />
-                  </node>
+            </node>
+          </node>
+          <node concept="2Hmddi" id="2rIdnPty4uh" role="3cqZAp">
+            <node concept="37vLTw" id="2rIdnPtK2pw" role="2Hmdds">
+              <ref role="3cqZAo" node="2rIdnPtK2nC" resolve="lub" />
+            </node>
+          </node>
+          <node concept="3vwNmj" id="2rIdnPtIdTq" role="3cqZAp">
+            <node concept="2OqwBi" id="2rIdnPtIdTr" role="3vwVQn">
+              <node concept="37vLTw" id="2rIdnPtIdTs" role="2Oq$k0">
+                <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
+              </node>
+              <node concept="liA8E" id="2rIdnPtIdTt" role="2OqNvi">
+                <ref role="37wK5l" node="2rIdnPtI2E7" resolve="matches" />
+                <node concept="37vLTw" id="2rIdnPtIdTu" role="37wK5m">
+                  <ref role="3cqZAo" node="7t5VLKGALUW" resolve="expect" />
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-                <node concept="37vLTw" id="5jCHAT2i0qO" role="37wK5m">
-                  <ref role="3cqZAo" node="5jCHAT2dJM2" resolve="NO_CONTEXT" />
+                <node concept="37vLTw" id="2rIdnPtK2u4" role="37wK5m">
+                  <ref role="3cqZAo" node="2rIdnPtK2nC" resolve="lub" />
                 </node>
               </node>
             </node>
@@ -1782,74 +1620,6 @@
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-              <node concept="liA8E" id="7t5VLKGALWc" role="2OqNvi">
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@@ -1880,31 +1650,45 @@
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+            <node concept="3cpWsn" id="2rIdnPty5SL" role="3cpWs9">
+              <property role="TrG5h" value="lub" />
+              <node concept="3uibUv" id="2rIdnPty5SM" role="1tU5fm">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+              </node>
+              <node concept="2OqwBi" id="2rIdnPtK35b" role="33vP2m">
+                <node concept="37vLTw" id="2rIdnPtK35c" role="2Oq$k0">
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+                <node concept="liA8E" id="2rIdnPtK35d" role="2OqNvi">
+                  <ref role="37wK5l" node="2rIdnPtJYwS" resolve="findRawLubInTest" />
+                  <node concept="37vLTw" id="2rIdnPtK35e" role="37wK5m">
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-                  <node concept="37vLTw" id="5jPBdK_wcg" role="37wK5m">
-                    <ref role="3cqZAo" node="6yEjedm7ovF" resolve="var" />
-                  </node>
+            </node>
+          </node>
+          <node concept="2Hmddi" id="2rIdnPty5SQ" role="3cqZAp">
+            <node concept="37vLTw" id="2rIdnPty5SR" role="2Hmdds">
+              <ref role="3cqZAo" node="2rIdnPty5SL" resolve="lub" />
+            </node>
+          </node>
+          <node concept="3vwNmj" id="2rIdnPtIf3h" role="3cqZAp">
+            <node concept="2OqwBi" id="2rIdnPtIf3i" role="3vwVQn">
+              <node concept="37vLTw" id="2rIdnPtIf3j" role="2Oq$k0">
+                <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
+              </node>
+              <node concept="liA8E" id="2rIdnPtIf3k" role="2OqNvi">
+                <ref role="37wK5l" node="2rIdnPtI2E7" resolve="matches" />
+                <node concept="37vLTw" id="2rIdnPtIf3l" role="37wK5m">
+                  <ref role="3cqZAo" node="7t5VLKGALWf" resolve="expect" />
                 </node>
-                <node concept="37vLTw" id="5jCHAT2i12C" role="37wK5m">
-                  <ref role="3cqZAo" node="5jCHAT2dJM2" resolve="NO_CONTEXT" />
+                <node concept="37vLTw" id="2rIdnPtIf3m" role="37wK5m">
+                  <ref role="3cqZAo" node="2rIdnPty5SL" resolve="lub" />
                 </node>
               </node>
             </node>
@@ -2055,74 +1839,6 @@
             </node>
           </node>
           <node concept="3clFbH" id="7t5VLKGALXh" role="3cqZAp" />
-          <node concept="3cpWs8" id="6yEjedm7saE" role="3cqZAp">
-            <node concept="3cpWsn" id="6yEjedm7saF" role="3cpWs9">
-              <property role="TrG5h" value="var" />
-              <node concept="3uibUv" id="6yEjedm7saG" role="1tU5fm">
-                <ref role="3uigEE" to="zx3l:~LogicalImpl" resolve="LogicalImpl" />
-                <node concept="3uibUv" id="6yEjedm7saH" role="11_B2D">
-                  <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-                </node>
-              </node>
-              <node concept="2ShNRf" id="6yEjedm7saI" role="33vP2m">
-                <node concept="1pGfFk" id="6yEjedm7saJ" role="2ShVmc">
-                  <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.String)" resolve="LogicalImpl" />
-                  <node concept="Xl_RD" id="6yEjedm7saK" role="37wK5m">
-                    <property role="Xl_RC" value="var" />
-                  </node>
-                  <node concept="3uibUv" id="6yEjedm7saL" role="1pMfVU">
-                    <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-          <node concept="3cpWs8" id="6yEjedm7saM" role="3cqZAp">
-            <node concept="3cpWsn" id="6yEjedm7saN" role="3cpWs9">
-              <property role="TrG5h" value="success" />
-              <node concept="10P_77" id="6yEjedm7saO" role="1tU5fm" />
-              <node concept="2YIFZM" id="20Ay2Vfc3qi" role="33vP2m">
-                <ref role="37wK5l" to="kqnc:5H6hZahmloU" resolve="findLub" />
-                <ref role="1Pybhc" to="kqnc:5H6hZahmlon" resolve="LubSolver" />
-                <node concept="37vLTw" id="6yEjedm7saQ" role="37wK5m">
-                  <ref role="3cqZAo" node="6yEjedm7saF" resolve="var" />
-                </node>
-                <node concept="2ShNRf" id="6yEjedm7saR" role="37wK5m">
-                  <node concept="1pGfFk" id="6yEjedm7saS" role="2ShVmc">
-                    <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.Object)" resolve="LogicalImpl" />
-                    <node concept="37vLTw" id="6yEjedm7saT" role="37wK5m">
-                      <ref role="3cqZAo" node="7t5VLKGALW_" resolve="left" />
-                    </node>
-                  </node>
-                </node>
-                <node concept="2ShNRf" id="6yEjedm7saU" role="37wK5m">
-                  <node concept="1pGfFk" id="6yEjedm7saV" role="2ShVmc">
-                    <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.Object)" resolve="LogicalImpl" />
-                    <node concept="37vLTw" id="6yEjedm7saW" role="37wK5m">
-                      <ref role="3cqZAo" node="7t5VLKGALWT" resolve="right" />
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-          <node concept="3clFbH" id="7t5VLKGALXz" role="3cqZAp" />
-          <node concept="3vwNmj" id="7t5VLKGALX$" role="3cqZAp">
-            <node concept="37vLTw" id="7t5VLKGALX_" role="3vwVQn">
-              <ref role="3cqZAo" node="6yEjedm7saN" resolve="success" />
-            </node>
-          </node>
-          <node concept="3vwNmj" id="7t5VLKGALXA" role="3cqZAp">
-            <node concept="2OqwBi" id="7t5VLKGALXB" role="3vwVQn">
-              <node concept="37vLTw" id="7t5VLKGALXC" role="2Oq$k0">
-                <ref role="3cqZAo" node="6yEjedm7saF" resolve="var" />
-              </node>
-              <node concept="liA8E" id="7t5VLKGALXD" role="2OqNvi">
-                <ref role="37wK5l" to="zx3l:~LogicalImpl.isBound():boolean" resolve="isBound" />
-              </node>
-            </node>
-          </node>
-          <node concept="3clFbH" id="7t5VLKGALXE" role="3cqZAp" />
           <node concept="3cpWs8" id="7t5VLKGALXF" role="3cqZAp">
             <node concept="3cpWsn" id="7t5VLKGALXG" role="3cpWs9">
               <property role="TrG5h" value="expect" />
@@ -2152,31 +1868,45 @@
               </node>
             </node>
           </node>
-          <node concept="3clFbF" id="5jPBdK_w_e" role="3cqZAp">
-            <node concept="2OqwBi" id="5jPBdK_w_f" role="3clFbG">
-              <node concept="2OqwBi" id="5jPBdK_w_g" role="2Oq$k0">
-                <node concept="2YIFZM" id="5jPBdK_w_h" role="2Oq$k0">
-                  <ref role="1Pybhc" to="w7la:~EvaluationSession" resolve="EvaluationSession" />
-                  <ref role="37wK5l" to="w7la:~EvaluationSession.current():jetbrains.mps.logic.reactor.evaluation.EvaluationSession" resolve="current" />
+          <node concept="3cpWs8" id="2rIdnPty8N3" role="3cqZAp">
+            <node concept="3cpWsn" id="2rIdnPty8N4" role="3cpWs9">
+              <property role="TrG5h" value="lub" />
+              <node concept="3uibUv" id="2rIdnPty8N5" role="1tU5fm">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+              </node>
+              <node concept="2OqwBi" id="2rIdnPtK35M" role="33vP2m">
+                <node concept="37vLTw" id="2rIdnPtK35N" role="2Oq$k0">
+                  <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
                 </node>
-                <node concept="liA8E" id="5jPBdK_w_i" role="2OqNvi">
-                  <ref role="37wK5l" to="w7la:~EvaluationSession.sessionSolver():jetbrains.mps.logic.reactor.evaluation.SessionSolver" resolve="sessionSolver" />
+                <node concept="liA8E" id="2rIdnPtK35O" role="2OqNvi">
+                  <ref role="37wK5l" node="2rIdnPtJYwS" resolve="findRawLubInTest" />
+                  <node concept="37vLTw" id="2rIdnPtK35P" role="37wK5m">
+                    <ref role="3cqZAo" node="7t5VLKGALW_" resolve="left" />
+                  </node>
+                  <node concept="37vLTw" id="2rIdnPtK35Q" role="37wK5m">
+                    <ref role="3cqZAo" node="7t5VLKGALWT" resolve="right" />
+                  </node>
                 </node>
               </node>
-              <node concept="liA8E" id="5jPBdK_w_j" role="2OqNvi">
-                <ref role="37wK5l" to="w7la:~SessionSolver.tell(jetbrains.mps.logic.reactor.program.AndItem,jetbrains.mps.logic.reactor.logical.LogicalContext):void" resolve="tell" />
-                <node concept="2YIFZM" id="5jCHAT2i2vU" role="37wK5m">
-                  <ref role="37wK5l" to="cxk7:5jCHAT29qgV" resolve="unifies" />
-                  <ref role="1Pybhc" to="cxk7:2GO7tyJVmP4" resolve="UnificationPredicate" />
-                  <node concept="37vLTw" id="5jPBdK_w_l" role="37wK5m">
-                    <ref role="3cqZAo" node="7t5VLKGALXG" resolve="expect" />
-                  </node>
-                  <node concept="37vLTw" id="5jPBdK_w_m" role="37wK5m">
-                    <ref role="3cqZAo" node="6yEjedm7saF" resolve="var" />
-                  </node>
+            </node>
+          </node>
+          <node concept="2Hmddi" id="2rIdnPty8N9" role="3cqZAp">
+            <node concept="37vLTw" id="2rIdnPty8Na" role="2Hmdds">
+              <ref role="3cqZAo" node="2rIdnPty8N4" resolve="lub" />
+            </node>
+          </node>
+          <node concept="3vwNmj" id="2rIdnPtIfhd" role="3cqZAp">
+            <node concept="2OqwBi" id="2rIdnPtIfhe" role="3vwVQn">
+              <node concept="37vLTw" id="2rIdnPtIfhf" role="2Oq$k0">
+                <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
+              </node>
+              <node concept="liA8E" id="2rIdnPtIfhg" role="2OqNvi">
+                <ref role="37wK5l" node="2rIdnPtI2E7" resolve="matches" />
+                <node concept="37vLTw" id="2rIdnPtIfhh" role="37wK5m">
+                  <ref role="3cqZAo" node="7t5VLKGALXG" resolve="expect" />
                 </node>
-                <node concept="37vLTw" id="5jCHAT2i2Uj" role="37wK5m">
-                  <ref role="3cqZAo" node="5jCHAT2dJM2" resolve="NO_CONTEXT" />
+                <node concept="37vLTw" id="2rIdnPtIfhi" role="37wK5m">
+                  <ref role="3cqZAo" node="2rIdnPty8N4" resolve="lub" />
                 </node>
               </node>
             </node>
@@ -2468,74 +2198,6 @@
             </node>
           </node>
           <node concept="3clFbH" id="7t5VLKGALZl" role="3cqZAp" />
-          <node concept="3cpWs8" id="6yEjedm7vK3" role="3cqZAp">
-            <node concept="3cpWsn" id="6yEjedm7vK4" role="3cpWs9">
-              <property role="TrG5h" value="var" />
-              <node concept="3uibUv" id="6yEjedm7vK5" role="1tU5fm">
-                <ref role="3uigEE" to="zx3l:~LogicalImpl" resolve="LogicalImpl" />
-                <node concept="3uibUv" id="6yEjedm7vK6" role="11_B2D">
-                  <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-                </node>
-              </node>
-              <node concept="2ShNRf" id="6yEjedm7vK7" role="33vP2m">
-                <node concept="1pGfFk" id="6yEjedm7vK8" role="2ShVmc">
-                  <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.String)" resolve="LogicalImpl" />
-                  <node concept="Xl_RD" id="6yEjedm7vK9" role="37wK5m">
-                    <property role="Xl_RC" value="var" />
-                  </node>
-                  <node concept="3uibUv" id="6yEjedm7vKa" role="1pMfVU">
-                    <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-          <node concept="3cpWs8" id="6yEjedm7vKb" role="3cqZAp">
-            <node concept="3cpWsn" id="6yEjedm7vKc" role="3cpWs9">
-              <property role="TrG5h" value="success" />
-              <node concept="10P_77" id="6yEjedm7vKd" role="1tU5fm" />
-              <node concept="2YIFZM" id="20Ay2Vfc3qf" role="33vP2m">
-                <ref role="37wK5l" to="kqnc:5H6hZahmloU" resolve="findLub" />
-                <ref role="1Pybhc" to="kqnc:5H6hZahmlon" resolve="LubSolver" />
-                <node concept="37vLTw" id="6yEjedm7vKf" role="37wK5m">
-                  <ref role="3cqZAo" node="6yEjedm7vK4" resolve="var" />
-                </node>
-                <node concept="2ShNRf" id="6yEjedm7vKg" role="37wK5m">
-                  <node concept="1pGfFk" id="6yEjedm7vKh" role="2ShVmc">
-                    <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.Object)" resolve="LogicalImpl" />
-                    <node concept="37vLTw" id="6yEjedm7vKi" role="37wK5m">
-                      <ref role="3cqZAo" node="7t5VLKGALY2" resolve="left" />
-                    </node>
-                  </node>
-                </node>
-                <node concept="2ShNRf" id="6yEjedm7vKj" role="37wK5m">
-                  <node concept="1pGfFk" id="6yEjedm7vKk" role="2ShVmc">
-                    <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.Object)" resolve="LogicalImpl" />
-                    <node concept="37vLTw" id="6yEjedm7vKl" role="37wK5m">
-                      <ref role="3cqZAo" node="7t5VLKGALYz" resolve="right" />
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-          <node concept="3clFbH" id="6yEjedm7vHC" role="3cqZAp" />
-          <node concept="3vwNmj" id="7t5VLKGALZC" role="3cqZAp">
-            <node concept="37vLTw" id="7t5VLKGALZD" role="3vwVQn">
-              <ref role="3cqZAo" node="6yEjedm7vKc" resolve="success" />
-            </node>
-          </node>
-          <node concept="3vwNmj" id="7t5VLKGALZE" role="3cqZAp">
-            <node concept="2OqwBi" id="7t5VLKGALZF" role="3vwVQn">
-              <node concept="37vLTw" id="7t5VLKGALZG" role="2Oq$k0">
-                <ref role="3cqZAo" node="6yEjedm7vK4" resolve="var" />
-              </node>
-              <node concept="liA8E" id="7t5VLKGALZH" role="2OqNvi">
-                <ref role="37wK5l" to="zx3l:~LogicalImpl.isBound():boolean" resolve="isBound" />
-              </node>
-            </node>
-          </node>
-          <node concept="3clFbH" id="7t5VLKGALZI" role="3cqZAp" />
           <node concept="3cpWs8" id="7t5VLKGALZJ" role="3cqZAp">
             <node concept="3cpWsn" id="7t5VLKGALZK" role="3cpWs9">
               <property role="TrG5h" value="expect" />
@@ -2579,31 +2241,45 @@
               </node>
             </node>
           </node>
-          <node concept="3clFbF" id="5jPBdK_wPq" role="3cqZAp">
-            <node concept="2OqwBi" id="5jPBdK_wPr" role="3clFbG">
-              <node concept="2OqwBi" id="5jPBdK_wPs" role="2Oq$k0">
-                <node concept="2YIFZM" id="5jPBdK_wPt" role="2Oq$k0">
-                  <ref role="1Pybhc" to="w7la:~EvaluationSession" resolve="EvaluationSession" />
-                  <ref role="37wK5l" to="w7la:~EvaluationSession.current():jetbrains.mps.logic.reactor.evaluation.EvaluationSession" resolve="current" />
+          <node concept="3cpWs8" id="2rIdnPtybj$" role="3cqZAp">
+            <node concept="3cpWsn" id="2rIdnPtybj_" role="3cpWs9">
+              <property role="TrG5h" value="lub" />
+              <node concept="3uibUv" id="2rIdnPtybjA" role="1tU5fm">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+              </node>
+              <node concept="2OqwBi" id="2rIdnPtK36p" role="33vP2m">
+                <node concept="37vLTw" id="2rIdnPtK36q" role="2Oq$k0">
+                  <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
                 </node>
-                <node concept="liA8E" id="5jPBdK_wPu" role="2OqNvi">
-                  <ref role="37wK5l" to="w7la:~EvaluationSession.sessionSolver():jetbrains.mps.logic.reactor.evaluation.SessionSolver" resolve="sessionSolver" />
+                <node concept="liA8E" id="2rIdnPtK36r" role="2OqNvi">
+                  <ref role="37wK5l" node="2rIdnPtJYwS" resolve="findRawLubInTest" />
+                  <node concept="37vLTw" id="2rIdnPtK36s" role="37wK5m">
+                    <ref role="3cqZAo" node="7t5VLKGALY2" resolve="left" />
+                  </node>
+                  <node concept="37vLTw" id="2rIdnPtK36t" role="37wK5m">
+                    <ref role="3cqZAo" node="7t5VLKGALYz" resolve="right" />
+                  </node>
                 </node>
               </node>
-              <node concept="liA8E" id="5jPBdK_wPv" role="2OqNvi">
-                <ref role="37wK5l" to="w7la:~SessionSolver.tell(jetbrains.mps.logic.reactor.program.AndItem,jetbrains.mps.logic.reactor.logical.LogicalContext):void" resolve="tell" />
-                <node concept="2YIFZM" id="5jCHAT2hZnc" role="37wK5m">
-                  <ref role="37wK5l" to="cxk7:5jCHAT29qgV" resolve="unifies" />
-                  <ref role="1Pybhc" to="cxk7:2GO7tyJVmP4" resolve="UnificationPredicate" />
-                  <node concept="37vLTw" id="5jPBdK_wPx" role="37wK5m">
-                    <ref role="3cqZAo" node="7t5VLKGALZK" resolve="expect" />
-                  </node>
-                  <node concept="37vLTw" id="5jPBdK_wPy" role="37wK5m">
-                    <ref role="3cqZAo" node="6yEjedm7vK4" resolve="var" />
-                  </node>
+            </node>
+          </node>
+          <node concept="2Hmddi" id="2rIdnPtybjE" role="3cqZAp">
+            <node concept="37vLTw" id="2rIdnPtybjF" role="2Hmdds">
+              <ref role="3cqZAo" node="2rIdnPtybj_" resolve="lub" />
+            </node>
+          </node>
+          <node concept="3vwNmj" id="2rIdnPtIfSN" role="3cqZAp">
+            <node concept="2OqwBi" id="2rIdnPtIfSO" role="3vwVQn">
+              <node concept="37vLTw" id="2rIdnPtIfSP" role="2Oq$k0">
+                <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
+              </node>
+              <node concept="liA8E" id="2rIdnPtIfSQ" role="2OqNvi">
+                <ref role="37wK5l" node="2rIdnPtI2E7" resolve="matches" />
+                <node concept="37vLTw" id="2rIdnPtIfSR" role="37wK5m">
+                  <ref role="3cqZAo" node="7t5VLKGALZK" resolve="expect" />
                 </node>
-                <node concept="37vLTw" id="5jCHAT2hZNg" role="37wK5m">
-                  <ref role="3cqZAo" node="5jCHAT2dJM2" resolve="NO_CONTEXT" />
+                <node concept="37vLTw" id="2rIdnPtIfSS" role="37wK5m">
+                  <ref role="3cqZAo" node="2rIdnPtybj_" resolve="lub" />
                 </node>
               </node>
             </node>
@@ -2611,26 +2287,10 @@
         </node>
       </node>
       <node concept="3s$Bmu" id="3hfdu5cNgqx" role="3s_gse">
-        <property role="3s$Bm0" value="lub_boxed_boxed" />
+        <property role="3s$Bm0" value="lub_long_integer" />
         <node concept="3cqZAl" id="3hfdu5cNgqy" role="3clF45" />
         <node concept="3Tm1VV" id="3hfdu5cNgqz" role="1B3o_S" />
         <node concept="3clFbS" id="3hfdu5cNgq$" role="3clF47">
-          <node concept="3SKdUt" id="4kzL_z3qz1z" role="3cqZAp">
-            <node concept="3SKdUq" id="4kzL_z3qz6r" role="3SKWNk">
-              <property role="3SKdUp" value="the tests boxed_boxed, boxed_prim, and prim_prim are in fact identical for now" />
-            </node>
-          </node>
-          <node concept="3SKdUt" id="4kzL_z3qzd1" role="3cqZAp">
-            <node concept="3SKdUq" id="4kzL_z3qzi4" role="3SKWNk">
-              <property role="3SKdUp" value="this is because the boxed types behave differently from ordinary classifier types" />
-            </node>
-          </node>
-          <node concept="3SKdUt" id="4kzL_z3qzoG" role="3cqZAp">
-            <node concept="3SKdUq" id="4kzL_z3qztL" role="3SKWNk">
-              <property role="3SKdUp" value="for example, lub(Long,Double)=double" />
-            </node>
-          </node>
-          <node concept="3clFbH" id="4kzL_z3qzDL" role="3cqZAp" />
           <node concept="3cpWs8" id="3hfdu5cNgq_" role="3cqZAp">
             <node concept="3cpWsn" id="3hfdu5cNgqA" role="3cpWs9">
               <property role="TrG5h" value="left" />
@@ -2641,35 +2301,6 @@
                 <node concept="38e3lM" id="428_4iYbyTf" role="1oi0x0">
                   <property role="TrG5h" value="list" />
                   <node concept="KCUsM" id="3hfdu5cNgqE" role="38e3mL">
-                    <node concept="38e3lM" id="428_4iYbySU" role="KCVpo">
-                      <property role="TrG5h" value="list" />
-                      <node concept="KCUsM" id="3KV3FXk2m2H" role="38e3mL">
-                        <node concept="1oi5UN" id="3KV3FXk2m2I" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2m2J" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2m2K" role="1oi5zu">
-                              <property role="1oi5yK" value="DoubleType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3KV3FXk2m2L" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2m2M" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2m2N" role="1oi5zu">
-                              <property role="1oi5yK" value="FloatType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3KV3FXk2m2O" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2m2P" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2m2Q" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
                     <node concept="38e3lM" id="428_4iYbyTG" role="KCVpo">
                       <property role="TrG5h" value="list" />
                       <node concept="KCUsM" id="3hfdu5cNgVC" role="38e3mL">
@@ -2715,14 +2346,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="4kzL_z3qyf$" role="KCVpo">
-                          <node concept="1oi5Wm" id="4kzL_z3qyf_" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="4kzL_z3qyfA" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
                       </node>
                     </node>
                     <node concept="38e3lM" id="428_4iYbySG" role="KCVpo">
@@ -2784,14 +2407,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="4kzL_z3qyfT" role="KCVpo">
-                          <node concept="1oi5Wm" id="4kzL_z3qyfU" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="4kzL_z3qyfV" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
                       </node>
                     </node>
                   </node>
@@ -2809,57 +2424,6 @@
                 <node concept="38e3lM" id="428_4iYbySL" role="1oi0x0">
                   <property role="TrG5h" value="list" />
                   <node concept="KCUsM" id="3hfdu5cNgri" role="38e3mL">
-                    <node concept="38e3lM" id="428_4iYbyTx" role="KCVpo">
-                      <property role="TrG5h" value="list" />
-                      <node concept="KCUsM" id="3hfdu5cNhbE" role="38e3mL">
-                        <node concept="1oi5UN" id="3hfdu5cNAgM" role="KCVpo">
-                          <node concept="1oi5Wm" id="3hfdu5cNAgN" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3hfdu5cNAgO" role="1oi5zu">
-                              <property role="1oi5yK" value="DoubleType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3hfdu5cNAil" role="KCVpo">
-                          <node concept="1oi5Wm" id="3hfdu5cNAim" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3hfdu5cNAin" role="1oi5zu">
-                              <property role="1oi5yK" value="FloatType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3hfdu5cNhbV" role="KCVpo">
-                          <node concept="1oi5Wm" id="3hfdu5cNhbW" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3hfdu5cNhbX" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3hfdu5cNhc4" role="KCVpo">
-                          <node concept="1oi5Wm" id="3hfdu5cNhc5" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3hfdu5cNhc6" role="1oi5zu">
-                              <property role="1oi5yK" value="IntegerType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3KV3FXk2pms" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2pmt" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2pmu" role="1oi5zu">
-                              <property role="1oi5yK" value="ClassifierType" />
-                            </node>
-                          </node>
-                          <node concept="1oi5Wm" id="3KV3FXk2pmv" role="1ojpOf">
-                            <property role="TrG5h" value="classifier" />
-                            <node concept="1oi5XN" id="3KV3FXk2pmw" role="1oi5zu">
-                              <property role="1oi5yK" value="Integer" />
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
                     <node concept="38e3lM" id="428_4iYbyTa" role="KCVpo">
                       <property role="TrG5h" value="list" />
                       <node concept="KCUsM" id="3KV3FXk2mIR" role="38e3mL">
@@ -2974,74 +2538,6 @@
             </node>
           </node>
           <node concept="3clFbH" id="3hfdu5cNgsb" role="3cqZAp" />
-          <node concept="3cpWs8" id="6yEjedm7zh9" role="3cqZAp">
-            <node concept="3cpWsn" id="6yEjedm7zha" role="3cpWs9">
-              <property role="TrG5h" value="var" />
-              <node concept="3uibUv" id="6yEjedm7zhb" role="1tU5fm">
-                <ref role="3uigEE" to="zx3l:~LogicalImpl" resolve="LogicalImpl" />
-                <node concept="3uibUv" id="6yEjedm7zhc" role="11_B2D">
-                  <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-                </node>
-              </node>
-              <node concept="2ShNRf" id="6yEjedm7zhd" role="33vP2m">
-                <node concept="1pGfFk" id="6yEjedm7zhe" role="2ShVmc">
-                  <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.String)" resolve="LogicalImpl" />
-                  <node concept="Xl_RD" id="6yEjedm7zhf" role="37wK5m">
-                    <property role="Xl_RC" value="var" />
-                  </node>
-                  <node concept="3uibUv" id="6yEjedm7zhg" role="1pMfVU">
-                    <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-          <node concept="3cpWs8" id="6yEjedm7zhh" role="3cqZAp">
-            <node concept="3cpWsn" id="6yEjedm7zhi" role="3cpWs9">
-              <property role="TrG5h" value="success" />
-              <node concept="10P_77" id="6yEjedm7zhj" role="1tU5fm" />
-              <node concept="2YIFZM" id="20Ay2Vfc3ql" role="33vP2m">
-                <ref role="37wK5l" to="kqnc:5H6hZahmloU" resolve="findLub" />
-                <ref role="1Pybhc" to="kqnc:5H6hZahmlon" resolve="LubSolver" />
-                <node concept="37vLTw" id="6yEjedm7zhl" role="37wK5m">
-                  <ref role="3cqZAo" node="6yEjedm7zha" resolve="var" />
-                </node>
-                <node concept="2ShNRf" id="6yEjedm7zhm" role="37wK5m">
-                  <node concept="1pGfFk" id="6yEjedm7zhn" role="2ShVmc">
-                    <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.Object)" resolve="LogicalImpl" />
-                    <node concept="37vLTw" id="6yEjedm7zho" role="37wK5m">
-                      <ref role="3cqZAo" node="3hfdu5cNgqA" resolve="left" />
-                    </node>
-                  </node>
-                </node>
-                <node concept="2ShNRf" id="6yEjedm7zhp" role="37wK5m">
-                  <node concept="1pGfFk" id="6yEjedm7zhq" role="2ShVmc">
-                    <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.Object)" resolve="LogicalImpl" />
-                    <node concept="37vLTw" id="6yEjedm7zhr" role="37wK5m">
-                      <ref role="3cqZAo" node="3hfdu5cNgre" resolve="right" />
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-          <node concept="3clFbH" id="3hfdu5cNgst" role="3cqZAp" />
-          <node concept="3vwNmj" id="3hfdu5cNgsu" role="3cqZAp">
-            <node concept="37vLTw" id="3hfdu5cNgsv" role="3vwVQn">
-              <ref role="3cqZAo" node="6yEjedm7zhi" resolve="success" />
-            </node>
-          </node>
-          <node concept="3vwNmj" id="3hfdu5cNgsw" role="3cqZAp">
-            <node concept="2OqwBi" id="3hfdu5cNgsx" role="3vwVQn">
-              <node concept="37vLTw" id="3hfdu5cNgsy" role="2Oq$k0">
-                <ref role="3cqZAo" node="6yEjedm7zha" resolve="var" />
-              </node>
-              <node concept="liA8E" id="3hfdu5cNgsz" role="2OqNvi">
-                <ref role="37wK5l" to="zx3l:~LogicalImpl.isBound():boolean" resolve="isBound" />
-              </node>
-            </node>
-          </node>
-          <node concept="3clFbH" id="3hfdu5cNgs$" role="3cqZAp" />
           <node concept="3cpWs8" id="3hfdu5cNgs_" role="3cqZAp">
             <node concept="3cpWsn" id="3hfdu5cNgsA" role="3cpWs9">
               <property role="TrG5h" value="expect" />
@@ -3052,11 +2548,31 @@
                 <node concept="38e3lM" id="428_4iYbySC" role="1oi0x0">
                   <property role="TrG5h" value="list" />
                   <node concept="KCUsM" id="3hfdu5cNgsE" role="38e3mL">
-                    <node concept="1oi5UN" id="3KV3FXk2o5M" role="KCVpo">
-                      <node concept="1oi5Wm" id="3KV3FXk2o5N" role="1ojpOf">
+                    <node concept="1oi5UN" id="2rIdnPvB0Ru" role="KCVpo">
+                      <node concept="1oi5Wm" id="2rIdnPvB0Rv" role="1ojpOf">
                         <property role="TrG5h" value="concept" />
-                        <node concept="1oi5XN" id="3KV3FXk2o5O" role="1oi5zu">
-                          <property role="1oi5yK" value="LongType" />
+                        <node concept="1oi5XN" id="2rIdnPvB0Rw" role="1oi5zu">
+                          <property role="1oi5yK" value="ClassifierType" />
+                        </node>
+                      </node>
+                      <node concept="1oi5Wm" id="2rIdnPvB0Rx" role="1ojpOf">
+                        <property role="TrG5h" value="classifier" />
+                        <node concept="1oi5XN" id="2rIdnPvB0Ry" role="1oi5zu">
+                          <property role="1oi5yK" value="Comparable" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="1oi5UN" id="2rIdnPvB0UV" role="KCVpo">
+                      <node concept="1oi5Wm" id="2rIdnPvB0UW" role="1ojpOf">
+                        <property role="TrG5h" value="concept" />
+                        <node concept="1oi5XN" id="2rIdnPvB0UX" role="1oi5zu">
+                          <property role="1oi5yK" value="ClassifierType" />
+                        </node>
+                      </node>
+                      <node concept="1oi5Wm" id="2rIdnPvB0UY" role="1ojpOf">
+                        <property role="TrG5h" value="classifier" />
+                        <node concept="1oi5XN" id="2rIdnPvB0UZ" role="1oi5zu">
+                          <property role="1oi5yK" value="Number" />
                         </node>
                       </node>
                     </node>
@@ -3065,31 +2581,45 @@
               </node>
             </node>
           </node>
-          <node concept="3clFbF" id="5jPBdK_x7_" role="3cqZAp">
-            <node concept="2OqwBi" id="5jPBdK_x7A" role="3clFbG">
-              <node concept="2OqwBi" id="5jPBdK_x7B" role="2Oq$k0">
-                <node concept="2YIFZM" id="5jPBdK_x7C" role="2Oq$k0">
-                  <ref role="1Pybhc" to="w7la:~EvaluationSession" resolve="EvaluationSession" />
-                  <ref role="37wK5l" to="w7la:~EvaluationSession.current():jetbrains.mps.logic.reactor.evaluation.EvaluationSession" resolve="current" />
+          <node concept="3cpWs8" id="2rIdnPtycFw" role="3cqZAp">
+            <node concept="3cpWsn" id="2rIdnPtycFx" role="3cpWs9">
+              <property role="TrG5h" value="lub" />
+              <node concept="3uibUv" id="2rIdnPtycFy" role="1tU5fm">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+              </node>
+              <node concept="2OqwBi" id="2rIdnPtK370" role="33vP2m">
+                <node concept="37vLTw" id="2rIdnPtK371" role="2Oq$k0">
+                  <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
                 </node>
-                <node concept="liA8E" id="5jPBdK_x7D" role="2OqNvi">
-                  <ref role="37wK5l" to="w7la:~EvaluationSession.sessionSolver():jetbrains.mps.logic.reactor.evaluation.SessionSolver" resolve="sessionSolver" />
+                <node concept="liA8E" id="2rIdnPtK372" role="2OqNvi">
+                  <ref role="37wK5l" node="2rIdnPtJYwS" resolve="findRawLubInTest" />
+                  <node concept="37vLTw" id="2rIdnPtK373" role="37wK5m">
+                    <ref role="3cqZAo" node="3hfdu5cNgqA" resolve="left" />
+                  </node>
+                  <node concept="37vLTw" id="2rIdnPtK374" role="37wK5m">
+                    <ref role="3cqZAo" node="3hfdu5cNgre" resolve="right" />
+                  </node>
                 </node>
               </node>
-              <node concept="liA8E" id="5jPBdK_x7E" role="2OqNvi">
-                <ref role="37wK5l" to="w7la:~SessionSolver.tell(jetbrains.mps.logic.reactor.program.AndItem,jetbrains.mps.logic.reactor.logical.LogicalContext):void" resolve="tell" />
-                <node concept="2YIFZM" id="5jCHAT2hYBO" role="37wK5m">
-                  <ref role="37wK5l" to="cxk7:5jCHAT29qgV" resolve="unifies" />
-                  <ref role="1Pybhc" to="cxk7:2GO7tyJVmP4" resolve="UnificationPredicate" />
-                  <node concept="37vLTw" id="5jPBdK_x7G" role="37wK5m">
-                    <ref role="3cqZAo" node="3hfdu5cNgsA" resolve="expect" />
-                  </node>
-                  <node concept="37vLTw" id="5jPBdK_x7H" role="37wK5m">
-                    <ref role="3cqZAo" node="6yEjedm7zha" resolve="var" />
-                  </node>
+            </node>
+          </node>
+          <node concept="2Hmddi" id="2rIdnPtycFA" role="3cqZAp">
+            <node concept="37vLTw" id="2rIdnPtycFB" role="2Hmdds">
+              <ref role="3cqZAo" node="2rIdnPtycFx" resolve="lub" />
+            </node>
+          </node>
+          <node concept="3vwNmj" id="2rIdnPtIfYC" role="3cqZAp">
+            <node concept="2OqwBi" id="2rIdnPtIfYD" role="3vwVQn">
+              <node concept="37vLTw" id="2rIdnPtIfYE" role="2Oq$k0">
+                <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
+              </node>
+              <node concept="liA8E" id="2rIdnPtIfYF" role="2OqNvi">
+                <ref role="37wK5l" node="2rIdnPtI2E7" resolve="matches" />
+                <node concept="37vLTw" id="2rIdnPtIfYG" role="37wK5m">
+                  <ref role="3cqZAo" node="3hfdu5cNgsA" resolve="expect" />
                 </node>
-                <node concept="37vLTw" id="5jCHAT2hZ15" role="37wK5m">
-                  <ref role="3cqZAo" node="5jCHAT2dJM2" resolve="NO_CONTEXT" />
+                <node concept="37vLTw" id="2rIdnPtIfYH" role="37wK5m">
+                  <ref role="3cqZAo" node="2rIdnPtycFx" resolve="lub" />
                 </node>
               </node>
             </node>
@@ -3097,26 +2627,10 @@
         </node>
       </node>
       <node concept="3s$Bmu" id="3KV3FXk2oHI" role="3s_gse">
-        <property role="3s$Bm0" value="lub_boxed_prim" />
+        <property role="3s$Bm0" value="lub_double_integer" />
         <node concept="3cqZAl" id="3KV3FXk2oHJ" role="3clF45" />
         <node concept="3Tm1VV" id="3KV3FXk2oHK" role="1B3o_S" />
         <node concept="3clFbS" id="3KV3FXk2oHL" role="3clF47">
-          <node concept="3SKdUt" id="4kzL_z3qz$g" role="3cqZAp">
-            <node concept="3SKdUq" id="4kzL_z3qz$h" role="3SKWNk">
-              <property role="3SKdUp" value="the tests boxed_boxed, boxed_prim, and prim_prim are in fact identical for now" />
-            </node>
-          </node>
-          <node concept="3SKdUt" id="4kzL_z3qz$i" role="3cqZAp">
-            <node concept="3SKdUq" id="4kzL_z3qz$j" role="3SKWNk">
-              <property role="3SKdUp" value="this is because the boxed types behave differently from ordinary classifier types" />
-            </node>
-          </node>
-          <node concept="3SKdUt" id="4kzL_z3qz$k" role="3cqZAp">
-            <node concept="3SKdUq" id="4kzL_z3qz$l" role="3SKWNk">
-              <property role="3SKdUp" value="for example, lub(Long,Double)=double" />
-            </node>
-          </node>
-          <node concept="3clFbH" id="4kzL_z3qzv8" role="3cqZAp" />
           <node concept="3cpWs8" id="3KV3FXk2oHM" role="3cqZAp">
             <node concept="3cpWsn" id="3KV3FXk2oHN" role="3cpWs9">
               <property role="TrG5h" value="left" />
@@ -3127,35 +2641,6 @@
                 <node concept="38e3lM" id="428_4iYbyTt" role="1oi0x0">
                   <property role="TrG5h" value="list" />
                   <node concept="KCUsM" id="3KV3FXk2oHR" role="38e3mL">
-                    <node concept="38e3lM" id="428_4iYbyTJ" role="KCVpo">
-                      <property role="TrG5h" value="list" />
-                      <node concept="KCUsM" id="3KV3FXk2oHT" role="38e3mL">
-                        <node concept="1oi5UN" id="3KV3FXk2oHU" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2oHV" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2oHW" role="1oi5zu">
-                              <property role="1oi5yK" value="DoubleType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3KV3FXk2oHX" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2oHY" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2oHZ" role="1oi5zu">
-                              <property role="1oi5yK" value="FloatType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3KV3FXk2oI0" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2oI1" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2oI2" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
                     <node concept="38e3lM" id="428_4iYbySz" role="KCVpo">
                       <property role="TrG5h" value="list" />
                       <node concept="KCUsM" id="3KV3FXk2oI9" role="38e3mL">
@@ -3201,14 +2686,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="4kzL_z3q$$G" role="KCVpo">
-                          <node concept="1oi5Wm" id="4kzL_z3q$$H" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="4kzL_z3q$$I" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
                       </node>
                     </node>
                     <node concept="38e3lM" id="428_4iYbyTn" role="KCVpo">
@@ -3256,14 +2733,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="4kzL_z3q$_1" role="KCVpo">
-                          <node concept="1oi5Wm" id="4kzL_z3q$_2" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="4kzL_z3q$_3" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
                       </node>
                     </node>
                     <node concept="38e3lM" id="428_4iYbyTE" role="KCVpo">
@@ -3325,14 +2794,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="4kzL_z3q$_m" role="KCVpo">
-                          <node concept="1oi5Wm" id="4kzL_z3q$_n" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="4kzL_z3q$_o" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
                       </node>
                     </node>
                   </node>
@@ -3350,43 +2811,6 @@
                 <node concept="38e3lM" id="428_4iYbyTD" role="1oi0x0">
                   <property role="TrG5h" value="list" />
                   <node concept="KCUsM" id="3KV3FXk2oJ5" role="38e3mL">
-                    <node concept="38e3lM" id="428_4iYbySV" role="KCVpo">
-                      <property role="TrG5h" value="list" />
-                      <node concept="KCUsM" id="3KV3FXk2oJ7" role="38e3mL">
-                        <node concept="1oi5UN" id="3KV3FXk2oJ8" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2oJ9" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2oJa" role="1oi5zu">
-                              <property role="1oi5yK" value="DoubleType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3KV3FXk2oJb" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2oJc" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2oJd" role="1oi5zu">
-                              <property role="1oi5yK" value="FloatType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3KV3FXk2oJe" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2oJf" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2oJg" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3KV3FXk2oJh" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2oJi" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2oJj" role="1oi5zu">
-                              <property role="1oi5yK" value="IntegerType" />
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
                     <node concept="38e3lM" id="428_4iYbySS" role="KCVpo">
                       <property role="TrG5h" value="list" />
                       <node concept="KCUsM" id="3KV3FXk2oJl" role="38e3mL">
@@ -3432,14 +2856,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="3KV3FXk2oJ_" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2oJA" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2oJB" role="1oi5zu">
-                              <property role="1oi5yK" value="IntegerType" />
-                            </node>
-                          </node>
-                        </node>
                       </node>
                     </node>
                     <node concept="38e3lM" id="428_4iYbySW" role="KCVpo">
@@ -3501,14 +2917,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="3KV3FXk2oJY" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2oJZ" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2oK0" role="1oi5zu">
-                              <property role="1oi5yK" value="IntegerType" />
-                            </node>
-                          </node>
-                        </node>
                       </node>
                     </node>
                   </node>
@@ -3517,74 +2925,6 @@
             </node>
           </node>
           <node concept="3clFbH" id="3KV3FXk2oK1" role="3cqZAp" />
-          <node concept="3cpWs8" id="6yEjedm7AXW" role="3cqZAp">
-            <node concept="3cpWsn" id="6yEjedm7AXX" role="3cpWs9">
-              <property role="TrG5h" value="var" />
-              <node concept="3uibUv" id="6yEjedm7AXY" role="1tU5fm">
-                <ref role="3uigEE" to="zx3l:~LogicalImpl" resolve="LogicalImpl" />
-                <node concept="3uibUv" id="6yEjedm7AXZ" role="11_B2D">
-                  <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-                </node>
-              </node>
-              <node concept="2ShNRf" id="6yEjedm7AY0" role="33vP2m">
-                <node concept="1pGfFk" id="6yEjedm7AY1" role="2ShVmc">
-                  <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.String)" resolve="LogicalImpl" />
-                  <node concept="Xl_RD" id="6yEjedm7AY2" role="37wK5m">
-                    <property role="Xl_RC" value="var" />
-                  </node>
-                  <node concept="3uibUv" id="6yEjedm7AY3" role="1pMfVU">
-                    <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-          <node concept="3cpWs8" id="6yEjedm7AY4" role="3cqZAp">
-            <node concept="3cpWsn" id="6yEjedm7AY5" role="3cpWs9">
-              <property role="TrG5h" value="success" />
-              <node concept="10P_77" id="6yEjedm7AY6" role="1tU5fm" />
-              <node concept="2YIFZM" id="20Ay2Vfc3qe" role="33vP2m">
-                <ref role="37wK5l" to="kqnc:5H6hZahmloU" resolve="findLub" />
-                <ref role="1Pybhc" to="kqnc:5H6hZahmlon" resolve="LubSolver" />
-                <node concept="37vLTw" id="6yEjedm7AY8" role="37wK5m">
-                  <ref role="3cqZAo" node="6yEjedm7AXX" resolve="var" />
-                </node>
-                <node concept="2ShNRf" id="6yEjedm7AY9" role="37wK5m">
-                  <node concept="1pGfFk" id="6yEjedm7AYa" role="2ShVmc">
-                    <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.Object)" resolve="LogicalImpl" />
-                    <node concept="37vLTw" id="6yEjedm7AYb" role="37wK5m">
-                      <ref role="3cqZAo" node="3KV3FXk2oHN" resolve="left" />
-                    </node>
-                  </node>
-                </node>
-                <node concept="2ShNRf" id="6yEjedm7AYc" role="37wK5m">
-                  <node concept="1pGfFk" id="6yEjedm7AYd" role="2ShVmc">
-                    <ref role="37wK5l" to="zx3l:~LogicalImpl.&lt;init&gt;(java.lang.Object)" resolve="LogicalImpl" />
-                    <node concept="37vLTw" id="6yEjedm7AYe" role="37wK5m">
-                      <ref role="3cqZAo" node="3KV3FXk2oJ1" resolve="right" />
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-          <node concept="3clFbH" id="3KV3FXk2oKj" role="3cqZAp" />
-          <node concept="3vwNmj" id="3KV3FXk2oKk" role="3cqZAp">
-            <node concept="37vLTw" id="3KV3FXk2oKl" role="3vwVQn">
-              <ref role="3cqZAo" node="6yEjedm7AY5" resolve="success" />
-            </node>
-          </node>
-          <node concept="3vwNmj" id="3KV3FXk2oKm" role="3cqZAp">
-            <node concept="2OqwBi" id="3KV3FXk2oKn" role="3vwVQn">
-              <node concept="37vLTw" id="3KV3FXk2oKo" role="2Oq$k0">
-                <ref role="3cqZAo" node="6yEjedm7AXX" resolve="var" />
-              </node>
-              <node concept="liA8E" id="3KV3FXk2oKp" role="2OqNvi">
-                <ref role="37wK5l" to="zx3l:~LogicalImpl.isBound():boolean" resolve="isBound" />
-              </node>
-            </node>
-          </node>
-          <node concept="3clFbH" id="3KV3FXk2oKq" role="3cqZAp" />
           <node concept="3cpWs8" id="3KV3FXk2oKr" role="3cqZAp">
             <node concept="3cpWsn" id="3KV3FXk2oKs" role="3cpWs9">
               <property role="TrG5h" value="expect" />
@@ -3595,11 +2935,31 @@
                 <node concept="38e3lM" id="428_4iYbyTc" role="1oi0x0">
                   <property role="TrG5h" value="list" />
                   <node concept="KCUsM" id="3KV3FXk2oKw" role="38e3mL">
-                    <node concept="1oi5UN" id="3KV3FXk2oKx" role="KCVpo">
-                      <node concept="1oi5Wm" id="3KV3FXk2oKy" role="1ojpOf">
+                    <node concept="1oi5UN" id="2rIdnPvB7sU" role="KCVpo">
+                      <node concept="1oi5Wm" id="2rIdnPvB7sV" role="1ojpOf">
                         <property role="TrG5h" value="concept" />
-                        <node concept="1oi5XN" id="3KV3FXk2oKz" role="1oi5zu">
-                          <property role="1oi5yK" value="LongType" />
+                        <node concept="1oi5XN" id="2rIdnPvB7sW" role="1oi5zu">
+                          <property role="1oi5yK" value="ClassifierType" />
+                        </node>
+                      </node>
+                      <node concept="1oi5Wm" id="2rIdnPvB7sX" role="1ojpOf">
+                        <property role="TrG5h" value="classifier" />
+                        <node concept="1oi5XN" id="2rIdnPvB7sY" role="1oi5zu">
+                          <property role="1oi5yK" value="Comparable" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="1oi5UN" id="2rIdnPvB7sZ" role="KCVpo">
+                      <node concept="1oi5Wm" id="2rIdnPvB7t0" role="1ojpOf">
+                        <property role="TrG5h" value="concept" />
+                        <node concept="1oi5XN" id="2rIdnPvB7t1" role="1oi5zu">
+                          <property role="1oi5yK" value="ClassifierType" />
+                        </node>
+                      </node>
+                      <node concept="1oi5Wm" id="2rIdnPvB7t2" role="1ojpOf">
+                        <property role="TrG5h" value="classifier" />
+                        <node concept="1oi5XN" id="2rIdnPvB7t3" role="1oi5zu">
+                          <property role="1oi5yK" value="Number" />
                         </node>
                       </node>
                     </node>
@@ -3608,31 +2968,45 @@
               </node>
             </node>
           </node>
-          <node concept="3clFbF" id="5jPBdK_xqP" role="3cqZAp">
-            <node concept="2OqwBi" id="5jPBdK_xqQ" role="3clFbG">
-              <node concept="2OqwBi" id="5jPBdK_xqR" role="2Oq$k0">
-                <node concept="2YIFZM" id="5jPBdK_xqS" role="2Oq$k0">
-                  <ref role="1Pybhc" to="w7la:~EvaluationSession" resolve="EvaluationSession" />
-                  <ref role="37wK5l" to="w7la:~EvaluationSession.current():jetbrains.mps.logic.reactor.evaluation.EvaluationSession" resolve="current" />
+          <node concept="3cpWs8" id="2rIdnPtycSm" role="3cqZAp">
+            <node concept="3cpWsn" id="2rIdnPtycSn" role="3cpWs9">
+              <property role="TrG5h" value="lub" />
+              <node concept="3uibUv" id="2rIdnPtycSo" role="1tU5fm">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+              </node>
+              <node concept="2OqwBi" id="2rIdnPtK37B" role="33vP2m">
+                <node concept="37vLTw" id="2rIdnPtK37C" role="2Oq$k0">
+                  <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
                 </node>
-                <node concept="liA8E" id="5jPBdK_xqT" role="2OqNvi">
-                  <ref role="37wK5l" to="w7la:~EvaluationSession.sessionSolver():jetbrains.mps.logic.reactor.evaluation.SessionSolver" resolve="sessionSolver" />
+                <node concept="liA8E" id="2rIdnPtK37D" role="2OqNvi">
+                  <ref role="37wK5l" node="2rIdnPtJYwS" resolve="findRawLubInTest" />
+                  <node concept="37vLTw" id="2rIdnPtK37E" role="37wK5m">
+                    <ref role="3cqZAo" node="3KV3FXk2oHN" resolve="left" />
+                  </node>
+                  <node concept="37vLTw" id="2rIdnPtK37F" role="37wK5m">
+                    <ref role="3cqZAo" node="3KV3FXk2oJ1" resolve="right" />
+                  </node>
                 </node>
               </node>
-              <node concept="liA8E" id="5jPBdK_xqU" role="2OqNvi">
-                <ref role="37wK5l" to="w7la:~SessionSolver.tell(jetbrains.mps.logic.reactor.program.AndItem,jetbrains.mps.logic.reactor.logical.LogicalContext):void" resolve="tell" />
-                <node concept="2YIFZM" id="5jCHAT2i1gz" role="37wK5m">
-                  <ref role="37wK5l" to="cxk7:5jCHAT29qgV" resolve="unifies" />
-                  <ref role="1Pybhc" to="cxk7:2GO7tyJVmP4" resolve="UnificationPredicate" />
-                  <node concept="37vLTw" id="5jPBdK_xqW" role="37wK5m">
-                    <ref role="3cqZAo" node="3KV3FXk2oKs" resolve="expect" />
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-                  <node concept="37vLTw" id="5jPBdK_xqX" role="37wK5m">
-                    <ref role="3cqZAo" node="6yEjedm7AXX" resolve="var" />
-                  </node>
+            </node>
+          </node>
+          <node concept="2Hmddi" id="2rIdnPtycSs" role="3cqZAp">
+            <node concept="37vLTw" id="2rIdnPtycSt" role="2Hmdds">
+              <ref role="3cqZAo" node="2rIdnPtycSn" resolve="lub" />
+            </node>
+          </node>
+          <node concept="3vwNmj" id="2rIdnPtIgC$" role="3cqZAp">
+            <node concept="2OqwBi" id="2rIdnPtIgC_" role="3vwVQn">
+              <node concept="37vLTw" id="2rIdnPtIgCA" role="2Oq$k0">
+                <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
+              </node>
+              <node concept="liA8E" id="2rIdnPtIgCB" role="2OqNvi">
+                <ref role="37wK5l" node="2rIdnPtI2E7" resolve="matches" />
+                <node concept="37vLTw" id="2rIdnPtIgCC" role="37wK5m">
+                  <ref role="3cqZAo" node="3KV3FXk2oKs" resolve="expect" />
                 </node>
-                <node concept="37vLTw" id="5jCHAT2i1EG" role="37wK5m">
-                  <ref role="3cqZAo" node="5jCHAT2dJM2" resolve="NO_CONTEXT" />
+                <node concept="37vLTw" id="2rIdnPtIgCD" role="37wK5m">
+                  <ref role="3cqZAo" node="2rIdnPtycSn" resolve="lub" />
                 </node>
               </node>
             </node>
@@ -3640,7 +3014,7 @@
         </node>
       </node>
       <node concept="3s$Bmu" id="3hfdu5cN_JR" role="3s_gse">
-        <property role="3s$Bm0" value="lub_primitive_primitive" />
+        <property role="3s$Bm0" value="lub_long_double" />
         <node concept="3cqZAl" id="3hfdu5cN_JS" role="3clF45" />
         <node concept="3Tm1VV" id="3hfdu5cN_JT" role="1B3o_S" />
         <node concept="3clFbS" id="3hfdu5cN_JU" role="3clF47">
@@ -3670,35 +3044,6 @@
                 <node concept="38e3lM" id="428_4iYbyT4" role="1oi0x0">
                   <property role="TrG5h" value="list" />
                   <node concept="KCUsM" id="3hfdu5cN_K0" role="38e3mL">
-                    <node concept="38e3lM" id="428_4iYbyTs" role="KCVpo">
-                      <property role="TrG5h" value="list" />
-                      <node concept="KCUsM" id="3hfdu5cNAep" role="38e3mL">
-                        <node concept="1oi5UN" id="3hfdu5cNAgi" role="KCVpo">
-                          <node concept="1oi5Wm" id="3hfdu5cNAgj" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3hfdu5cNAgk" role="1oi5zu">
-                              <property role="1oi5yK" value="DoubleType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3hfdu5cNAhR" role="KCVpo">
-                          <node concept="1oi5Wm" id="3hfdu5cNAhS" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3hfdu5cNAhT" role="1oi5zu">
-                              <property role="1oi5yK" value="FloatType" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3hfdu5cNAet" role="KCVpo">
-                          <node concept="1oi5Wm" id="3hfdu5cNAeu" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3hfdu5cNAev" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
                     <node concept="38e3lM" id="428_4iYbyT9" role="KCVpo">
                       <property role="TrG5h" value="list" />
                       <node concept="KCUsM" id="3hfdu5cN_K2" role="38e3mL">
@@ -3744,14 +3089,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="3KV3FXjZ5jx" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXjZ5jy" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXjZ5jz" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
                       </node>
                     </node>
                     <node concept="38e3lM" id="428_4iYbyTA" role="KCVpo">
@@ -3813,14 +3150,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="3KV3FXjZ5k$" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXjZ5k_" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXjZ5kA" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
                       </node>
                     </node>
                   </node>
@@ -3838,19 +3167,6 @@
                 <node concept="38e3lM" id="428_4iYbyTk" role="1oi0x0">
                   <property role="TrG5h" value="list" />
                   <node concept="KCUsM" id="3hfdu5cN_KY" role="38e3mL">
-                    <node concept="38e3lM" id="428_4iYbyTp" role="KCVpo">
-                      <property role="TrG5h" value="list" />
-                      <node concept="KCUsM" id="3hfdu5cN_L0" role="38e3mL">
-                        <node concept="1oi5UN" id="3hfdu5cN_L4" role="KCVpo">
-                          <node concept="1oi5Wm" id="3hfdu5cN_L5" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3hfdu5cN_L6" role="1oi5zu">
-                              <property role="1oi5yK" value="DoubleType" />
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
                     <node concept="38e3lM" id="428_4iYbyTr" role="KCVpo">
                       <property role="TrG5h" value="list" />
                       <node concept="KCUsM" id="3hfdu5cN_Lb" role="38e3mL">
@@ -3896,14 +3212,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="3hfdu5cN_Lw" role="KCVpo">
-                          <node concept="1oi5Wm" id="3hfdu5cN_Lx" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3hfdu5cN_Ly" role="1oi5zu">
-                              <property role="1oi5yK" value="DoubleType" />
-                            </node>
-                          </node>
-                        </node>
                       </node>
                     </node>
                     <node concept="38e3lM" id="428_4iYbyTu" role="KCVpo">
@@ -3965,14 +3273,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="3hfdu5cN_Mn" role="KCVpo">
-                          <node concept="1oi5Wm" id="3hfdu5cN_Mo" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3hfdu5cN_Mp" role="1oi5zu">
-                              <property role="1oi5yK" value="DoubleType" />
-                            </node>
-                          </node>
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                     </node>
                   </node>
@@ -3981,74 +3281,6 @@
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-              <node concept="3uibUv" id="6yEjedm7Ejw" role="1tU5fm">
-                <ref role="3uigEE" to="zx3l:~LogicalImpl" resolve="LogicalImpl" />
-                <node concept="3uibUv" id="6yEjedm7Ejx" role="11_B2D">
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-                <ref role="1Pybhc" to="kqnc:5H6hZahmlon" resolve="LubSolver" />
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           <node concept="3cpWs8" id="3hfdu5cN_MO" role="3cqZAp">
             <node concept="3cpWsn" id="3hfdu5cN_MP" role="3cpWs9">
               <property role="TrG5h" value="expect" />
@@ -4059,11 +3291,31 @@
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                   <property role="TrG5h" value="list" />
                   <node concept="KCUsM" id="3hfdu5cN_MT" role="38e3mL">
-                    <node concept="1oi5UN" id="3hfdu5cN_MU" role="KCVpo">
-                      <node concept="1oi5Wm" id="3hfdu5cN_MV" role="1ojpOf">
+                    <node concept="1oi5UN" id="2rIdnPvBclh" role="KCVpo">
+                      <node concept="1oi5Wm" id="2rIdnPvBcli" role="1ojpOf">
                         <property role="TrG5h" value="concept" />
-                        <node concept="1oi5XN" id="3hfdu5cN_MW" role="1oi5zu">
-                          <property role="1oi5yK" value="DoubleType" />
+                        <node concept="1oi5XN" id="2rIdnPvBclj" role="1oi5zu">
+                          <property role="1oi5yK" value="ClassifierType" />
+                        </node>
+                      </node>
+                      <node concept="1oi5Wm" id="2rIdnPvBclk" role="1ojpOf">
+                        <property role="TrG5h" value="classifier" />
+                        <node concept="1oi5XN" id="2rIdnPvBcll" role="1oi5zu">
+                          <property role="1oi5yK" value="Comparable" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="1oi5UN" id="2rIdnPvBclm" role="KCVpo">
+                      <node concept="1oi5Wm" id="2rIdnPvBcln" role="1ojpOf">
+                        <property role="TrG5h" value="concept" />
+                        <node concept="1oi5XN" id="2rIdnPvBclo" role="1oi5zu">
+                          <property role="1oi5yK" value="ClassifierType" />
+                        </node>
+                      </node>
+                      <node concept="1oi5Wm" id="2rIdnPvBclp" role="1ojpOf">
+                        <property role="TrG5h" value="classifier" />
+                        <node concept="1oi5XN" id="2rIdnPvBclq" role="1oi5zu">
+                          <property role="1oi5yK" value="Number" />
                         </node>
                       </node>
                     </node>
@@ -4072,31 +3324,45 @@
               </node>
             </node>
           </node>
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-                  <ref role="37wK5l" to="w7la:~EvaluationSession.current():jetbrains.mps.logic.reactor.evaluation.EvaluationSession" resolve="current" />
+          <node concept="3cpWs8" id="2rIdnPtye7K" role="3cqZAp">
+            <node concept="3cpWsn" id="2rIdnPtye7L" role="3cpWs9">
+              <property role="TrG5h" value="lub" />
+              <node concept="3uibUv" id="2rIdnPtye7M" role="1tU5fm">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+              </node>
+              <node concept="2OqwBi" id="2rIdnPtK38e" role="33vP2m">
+                <node concept="37vLTw" id="2rIdnPtK38f" role="2Oq$k0">
+                  <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
                 </node>
-                <node concept="liA8E" id="5jPBdK_xIm" role="2OqNvi">
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+                <node concept="liA8E" id="2rIdnPtK38g" role="2OqNvi">
+                  <ref role="37wK5l" node="2rIdnPtJYwS" resolve="findRawLubInTest" />
+                  <node concept="37vLTw" id="2rIdnPtK38h" role="37wK5m">
+                    <ref role="3cqZAo" node="3hfdu5cN_JW" resolve="left" />
+                  </node>
+                  <node concept="37vLTw" id="2rIdnPtK38i" role="37wK5m">
+                    <ref role="3cqZAo" node="3hfdu5cN_KU" resolve="right" />
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                 </node>
               </node>
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-                <ref role="37wK5l" to="w7la:~SessionSolver.tell(jetbrains.mps.logic.reactor.program.AndItem,jetbrains.mps.logic.reactor.logical.LogicalContext):void" resolve="tell" />
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-                    <ref role="3cqZAo" node="6yEjedm7Ejv" resolve="var" />
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+            </node>
+          </node>
+          <node concept="2Hmddi" id="2rIdnPtye7Q" role="3cqZAp">
+            <node concept="37vLTw" id="2rIdnPtye7R" role="2Hmdds">
+              <ref role="3cqZAo" node="2rIdnPtye7L" resolve="lub" />
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+          </node>
+          <node concept="3vwNmj" id="2rIdnPtIhiM" role="3cqZAp">
+            <node concept="2OqwBi" id="2rIdnPtIhiN" role="3vwVQn">
+              <node concept="37vLTw" id="2rIdnPtIhiO" role="2Oq$k0">
+                <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
+              </node>
+              <node concept="liA8E" id="2rIdnPtIhiP" role="2OqNvi">
+                <ref role="37wK5l" node="2rIdnPtI2E7" resolve="matches" />
+                <node concept="37vLTw" id="2rIdnPtIhiQ" role="37wK5m">
+                  <ref role="3cqZAo" node="3hfdu5cN_MP" resolve="expect" />
                 </node>
-                <node concept="37vLTw" id="5jCHAT2hYqp" role="37wK5m">
-                  <ref role="3cqZAo" node="5jCHAT2dJM2" resolve="NO_CONTEXT" />
+                <node concept="37vLTw" id="2rIdnPtIhiR" role="37wK5m">
+                  <ref role="3cqZAo" node="2rIdnPtye7L" resolve="lub" />
                 </node>
               </node>
             </node>
@@ -4118,35 +3384,6 @@
                 <node concept="38e3lM" id="428_4iYbySM" role="1oi0x0">
                   <property role="TrG5h" value="list" />
                   <node concept="KCUsM" id="3KV3FXjXcpg" role="38e3mL">
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-                      <node concept="KCUsM" id="3KV3FXjXcpi" role="38e3mL">
-                        <node concept="1oi5UN" id="3KV3FXjXcpm" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXjXcpn" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXjXcpo" role="1oi5zu">
-                              <property role="1oi5yK" value="DoubleType" />
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-                          </node>
-                        </node>
-                        <node concept="1oi5UN" id="3KV3FXjXcpp" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXjXcpq" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXjXcpr" role="1oi5zu">
-                              <property role="1oi5yK" value="FloatType" />
-                            </node>
-                          </node>
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-                        <node concept="1oi5UN" id="3KV3FXjXcps" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXjXcpt" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXjXcpu" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
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                     <node concept="38e3lM" id="428_4iYbyT1" role="KCVpo">
                       <property role="TrG5h" value="list" />
                       <node concept="KCUsM" id="3KV3FXjXcpw" role="38e3mL">
@@ -4192,14 +3429,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="3KV3FXk2lnv" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2lnw" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2lnx" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
-                        </node>
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                     </node>
                     <node concept="38e3lM" id="428_4iYbyTl" role="KCVpo">
@@ -4261,14 +3490,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="3KV3FXk2lnO" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2lnP" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2lnQ" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
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-                          </node>
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@@ -4331,14 +3552,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="3KV3FXjXcq_" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXjXcqA" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXjXcqB" role="1oi5zu">
-                              <property role="1oi5yK" value="IntegerType" />
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-                          </node>
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                     <node concept="38e3lM" id="428_4iYbyTB" role="KCVpo">
@@ -4386,14 +3599,6 @@
                             </node>
                           </node>
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-                        <node concept="1oi5UN" id="3KV3FXjXcW9" role="KCVpo">
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-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXjXcWb" role="1oi5zu">
-                              <property role="1oi5yK" value="IntegerType" />
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-                          </node>
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                     <node concept="38e3lM" id="428_4iYbySQ" role="KCVpo">
@@ -4449,74 +3654,6 @@
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-              <node concept="3uibUv" id="6yEjedm7HxO" role="1tU5fm">
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               <property role="TrG5h" value="expect" />
@@ -4560,31 +3697,45 @@
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+                <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
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+              <node concept="liA8E" id="2rIdnPtIhww" role="2OqNvi">
+                <ref role="37wK5l" node="2rIdnPtI2E7" resolve="matches" />
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+                  <ref role="3cqZAo" node="2rIdnPtyfga" resolve="lub" />
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@@ -4606,35 +3757,6 @@
                 <node concept="38e3lM" id="428_4iYbyTm" role="1oi0x0">
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                   <node concept="KCUsM" id="3KV3FXk18Nh" role="38e3mL">
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-                      <node concept="KCUsM" id="3KV3FXk18Nj" role="38e3mL">
-                        <node concept="1oi5UN" id="3KV3FXk18Nk" role="KCVpo">
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-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk18Nm" role="1oi5zu">
-                              <property role="1oi5yK" value="DoubleType" />
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-                          </node>
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-                        <node concept="1oi5UN" id="3KV3FXk18Nn" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk18No" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk18Np" role="1oi5zu">
-                              <property role="1oi5yK" value="FloatType" />
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-                        <node concept="1oi5UN" id="3KV3FXk18Nq" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk18Nr" role="1ojpOf">
-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk18Ns" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
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-                          </node>
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                     <node concept="38e3lM" id="428_4iYbyTo" role="KCVpo">
                       <property role="TrG5h" value="list" />
                       <node concept="KCUsM" id="3KV3FXk18Nu" role="38e3mL">
@@ -4680,14 +3802,6 @@
                             </node>
                           </node>
                         </node>
-                        <node concept="1oi5UN" id="3KV3FXk2kGt" role="KCVpo">
-                          <node concept="1oi5Wm" id="3KV3FXk2kGu" role="1ojpOf">
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-                            <node concept="1oi5XN" id="3KV3FXk2kGv" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
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-                          </node>
-                        </node>
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                     <node concept="38e3lM" id="428_4iYbyTd" role="KCVpo">
@@ -4749,14 +3863,6 @@
                             </node>
                           </node>
                         </node>
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-                            <property role="TrG5h" value="concept" />
-                            <node concept="1oi5XN" id="3KV3FXk2kHZ" role="1oi5zu">
-                              <property role="1oi5yK" value="LongType" />
-                            </node>
-                          </node>
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@@ -4813,74 +3919,6 @@
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               <property role="TrG5h" value="expect" />
@@ -4910,31 +3948,1177 @@
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+              <property role="TrG5h" value="lub" />
+              <node concept="3uibUv" id="2rIdnPtygdq" role="1tU5fm">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
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+              <node concept="2OqwBi" id="2rIdnPtK39s" role="33vP2m">
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+                              <property role="1oi5yK" value="AbstractSequentialList" />
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+                          <node concept="1oi5Wm" id="6N2bvv_tzZ5" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="6N2bvv_tzZ6" role="1oi5zu">
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+                          <node concept="1oi5Wm" id="6N2bvv_tzZn" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="6N2bvv_tzZo" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
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+                          </node>
+                          <node concept="1oi5Wm" id="6N2bvv_tzZp" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="6N2bvv_tzZq" role="1oi5zu">
+                              <property role="1oi5yK" value="RandomAccess" />
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+                        <node concept="1oi5UN" id="6N2bvv_tzZr" role="KCVpo">
+                          <node concept="1oi5Wm" id="6N2bvv_tzZs" role="1ojpOf">
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+                            <node concept="1oi5XN" id="6N2bvv_tzZt" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
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+                          <node concept="1oi5Wm" id="6N2bvv_tzZu" role="1ojpOf">
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+                        <node concept="1oi5UN" id="6N2bvv_tzZy" role="KCVpo">
+                          <node concept="1oi5Wm" id="6N2bvv_tzZz" role="1ojpOf">
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+                            <node concept="1oi5XN" id="6N2bvv_tzZ$" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
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+                          </node>
+                          <node concept="1oi5Wm" id="6N2bvv_tzZ_" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="6N2bvv_tzZA" role="1oi5zu">
+                              <property role="1oi5yK" value="Object" />
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+                          </node>
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+                        <node concept="1oi5UN" id="6N2bvv_tzZB" role="KCVpo">
+                          <node concept="1oi5Wm" id="6N2bvv_tzZC" role="1ojpOf">
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+                            <node concept="1oi5XN" id="6N2bvv_tzZD" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
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+                          </node>
+                          <node concept="1oi5Wm" id="6N2bvv_tzZE" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="6N2bvv_tzZF" role="1oi5zu">
+                              <property role="1oi5yK" value="Clonable" />
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+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="6N2bvv_tzZG" role="KCVpo">
+                          <node concept="1oi5Wm" id="6N2bvv_tzZH" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="6N2bvv_tzZI" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="6N2bvv_tzZJ" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="6N2bvv_tzZK" role="1oi5zu">
+                              <property role="1oi5yK" value="ArrayList" />
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+                          </node>
+                        </node>
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+                    </node>
+                    <node concept="38e3lM" id="6N2bvv_tzZL" role="KCVpo">
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+                      <node concept="KCUsM" id="6N2bvv_tzZM" role="38e3mL">
+                        <node concept="1oi5UN" id="6N2bvv_tzZN" role="KCVpo">
+                          <node concept="1oi5Wm" id="6N2bvv_tzZO" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="6N2bvv_tzZP" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="6N2bvv_tzZQ" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="6N2bvv_tzZR" role="1oi5zu">
+                              <property role="1oi5yK" value="Object" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="6N2bvv_tzZS" role="KCVpo">
+                          <node concept="1oi5Wm" id="6N2bvv_tzZT" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="6N2bvv_tzZU" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="6N2bvv_tzZV" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="6N2bvv_tzZW" role="1oi5zu">
+                              <property role="1oi5yK" value="Serializable" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="6N2bvv_tzZX" role="KCVpo">
+                          <node concept="1oi5Wm" id="6N2bvv_tzZY" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="6N2bvv_tzZZ" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="6N2bvv_t$00" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="6N2bvv_t$01" role="1oi5zu">
+                              <property role="1oi5yK" value="ArrayList" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbH" id="6N2bvv_tx93" role="3cqZAp" />
+          <node concept="3cpWs8" id="6N2bvv_tx9v" role="3cqZAp">
+            <node concept="3cpWsn" id="6N2bvv_tx9w" role="3cpWs9">
+              <property role="TrG5h" value="expect" />
+              <node concept="3uibUv" id="6N2bvv_tx9x" role="1tU5fm">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
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+                <node concept="38e3lM" id="6N2bvv_tx9z" role="1oi0x0">
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+                  <node concept="KCUsM" id="6N2bvv_tx9$" role="38e3mL">
+                    <node concept="1oi5UN" id="6N2bvv_tPNH" role="KCVpo">
+                      <node concept="1oi5Wm" id="6N2bvv_tPNI" role="1ojpOf">
+                        <property role="TrG5h" value="concept" />
+                        <node concept="1oi5XN" id="6N2bvv_tPNJ" role="1oi5zu">
+                          <property role="1oi5yK" value="ClassifierType" />
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+                      </node>
+                      <node concept="1oi5Wm" id="6N2bvv_tPNK" role="1ojpOf">
+                        <property role="TrG5h" value="classifier" />
+                        <node concept="1oi5XN" id="6N2bvv_tPNL" role="1oi5zu">
+                          <property role="1oi5yK" value="AbstractList" />
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+                    <node concept="1oi5UN" id="6N2bvv_tPPx" role="KCVpo">
+                      <node concept="1oi5Wm" id="6N2bvv_tPPy" role="1ojpOf">
+                        <property role="TrG5h" value="concept" />
+                        <node concept="1oi5XN" id="6N2bvv_tPPz" role="1oi5zu">
+                          <property role="1oi5yK" value="ClassifierType" />
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+                      </node>
+                      <node concept="1oi5Wm" id="6N2bvv_tPP$" role="1ojpOf">
+                        <property role="TrG5h" value="classifier" />
+                        <node concept="1oi5XN" id="6N2bvv_tPP_" role="1oi5zu">
+                          <property role="1oi5yK" value="Clonable" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="1oi5UN" id="6N2bvv_tPQl" role="KCVpo">
+                      <node concept="1oi5Wm" id="6N2bvv_tPQm" role="1ojpOf">
+                        <property role="TrG5h" value="concept" />
+                        <node concept="1oi5XN" id="6N2bvv_tPQn" role="1oi5zu">
+                          <property role="1oi5yK" value="ClassifierType" />
+                        </node>
+                      </node>
+                      <node concept="1oi5Wm" id="6N2bvv_tPQo" role="1ojpOf">
+                        <property role="TrG5h" value="classifier" />
+                        <node concept="1oi5XN" id="6N2bvv_tPQp" role="1oi5zu">
+                          <property role="1oi5yK" value="Serializable" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3cpWs8" id="2rIdnPtyh5R" role="3cqZAp">
+            <node concept="3cpWsn" id="2rIdnPtyh5S" role="3cpWs9">
+              <property role="TrG5h" value="lub" />
+              <node concept="3uibUv" id="2rIdnPtyh5T" role="1tU5fm">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
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+                <node concept="37vLTw" id="2rIdnPtK3a4" role="2Oq$k0">
+                  <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
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+                <node concept="liA8E" id="2rIdnPtK3a5" role="2OqNvi">
+                  <ref role="37wK5l" node="2rIdnPtJYwS" resolve="findRawLubInTest" />
+                  <node concept="37vLTw" id="2rIdnPtK3a6" role="37wK5m">
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+                  <node concept="37vLTw" id="2rIdnPtK3a7" role="37wK5m">
+                    <ref role="3cqZAo" node="6N2bvv_tx8M" resolve="right" />
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+            <node concept="37vLTw" id="2rIdnPtyh5Y" role="2Hmdds">
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+              <node concept="37vLTw" id="2rIdnPtIikA" role="2Oq$k0">
+                <ref role="3cqZAo" node="2rIdnPtI3kj" resolve="lubSolver" />
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+              <node concept="liA8E" id="2rIdnPtIikB" role="2OqNvi">
+                <ref role="37wK5l" node="2rIdnPtI2E7" resolve="matches" />
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@@ -4944,109 +5128,29 @@
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-                <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
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+    <node concept="2tJIrI" id="2rIdnPtSGpF" role="jymVt" />
+    <node concept="312cEg" id="2rIdnPtSK0n" role="jymVt">
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+      <node concept="3uibUv" id="2rIdnPtSK0U" role="1tU5fm">
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@@ -5249,74 +5353,29 @@
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+            <node concept="3cpWsn" id="2rIdnPtSSHW" role="3cpWs9">
+              <property role="TrG5h" value="subtypingPath" />
+              <node concept="3uibUv" id="2rIdnPtSSHU" role="1tU5fm">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
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+                <node concept="37vLTw" id="2rIdnPtSSHY" role="2Oq$k0">
+                  <ref role="3cqZAo" node="2rIdnPtSK0n" resolve="subtypePathHelper" />
+                </node>
+                <node concept="liA8E" id="2rIdnPtSSHZ" role="2OqNvi">
+                  <ref role="37wK5l" node="2rIdnPtSItB" resolve="findSubtypingPathInTest" />
+                  <node concept="37vLTw" id="2rIdnPtSSI0" role="37wK5m">
+                    <ref role="3cqZAo" node="3KV3FXk2boN" resolve="fullPaths" />
                   </node>
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-                    <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+                  <node concept="37vLTw" id="2rIdnPtSSI1" role="37wK5m">
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-              <node concept="liA8E" id="3KV3FXk2bqk" role="2OqNvi">
-                <ref role="37wK5l" to="zx3l:~LogicalImpl.isBound():boolean" resolve="isBound" />
-              </node>
-            </node>
-          </node>
-          <node concept="3clFbH" id="3KV3FXk2bql" role="3cqZAp" />
+          <node concept="3clFbH" id="2rIdnPtSVwm" role="3cqZAp" />
           <node concept="3cpWs8" id="3KV3FXk2bqm" role="3cqZAp">
             <node concept="3cpWsn" id="3KV3FXk2bqn" role="3cpWs9">
               <property role="TrG5h" value="expect" />
@@ -5382,31 +5441,19 @@
               </node>
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-                <node concept="liA8E" id="5jPBdK_R$V" role="2OqNvi">
-                  <ref role="37wK5l" to="w7la:~EvaluationSession.sessionSolver():jetbrains.mps.logic.reactor.evaluation.SessionSolver" resolve="sessionSolver" />
-                </node>
+          <node concept="3clFbH" id="2rIdnPtSSKk" role="3cqZAp" />
+          <node concept="3vwNmj" id="2rIdnPtSTjW" role="3cqZAp">
+            <node concept="2OqwBi" id="2rIdnPtSTJA" role="3vwVQn">
+              <node concept="37vLTw" id="2rIdnPtSTmB" role="2Oq$k0">
+                <ref role="3cqZAo" node="2rIdnPtSK0n" resolve="subtypePathHelper" />
               </node>
-              <node concept="liA8E" id="5jPBdK_R$W" role="2OqNvi">
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-                  <ref role="1Pybhc" to="cxk7:2GO7tyJVmP4" resolve="UnificationPredicate" />
-                  <node concept="37vLTw" id="5jPBdK_R$Y" role="37wK5m">
-                    <ref role="3cqZAo" node="3KV3FXk2bqn" resolve="expect" />
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-                    <ref role="3cqZAo" node="6yEjedm7VYw" resolve="var" />
-                  </node>
+              <node concept="liA8E" id="2rIdnPtSU$$" role="2OqNvi">
+                <ref role="37wK5l" node="2rIdnPtSImC" resolve="matches" />
+                <node concept="37vLTw" id="2rIdnPtSU$V" role="37wK5m">
+                  <ref role="3cqZAo" node="3KV3FXk2bqn" resolve="expect" />
                 </node>
-                <node concept="37vLTw" id="5jCHAT2i7ks" role="37wK5m">
-                  <ref role="3cqZAo" node="5jCHAT2i6xk" resolve="NO_CONTEXT" />
+                <node concept="37vLTw" id="2rIdnPtSVg5" role="37wK5m">
+                  <ref role="3cqZAo" node="2rIdnPtSSHW" resolve="subtypingPath" />
                 </node>
               </node>
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@@ -5416,51 +5463,275 @@
     </node>
     <node concept="1KhYhu" id="5jPBdK_QIy" role="1KhZu4">
       <node concept="3clFbS" id="5jPBdK_QIz" role="2VODD2">
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-                  <ref role="1PxDUh" to="cxk7:2GO7tyJVmP4" resolve="UnificationPredicate" />
-                </node>
+        <node concept="3clFbF" id="2rIdnPtSKKc" role="3cqZAp">
+          <node concept="37vLTI" id="2rIdnPtSLse" role="3clFbG">
+            <node concept="2ShNRf" id="2rIdnPtSLyj" role="37vLTx">
+              <node concept="1pGfFk" id="2rIdnPtSLvw" role="2ShVmc">
+                <ref role="37wK5l" node="2rIdnPtSIWu" resolve="TestingSubtypePathHelper" />
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-              <node concept="10Nm6u" id="2UGjFq4L8GP" role="37wK5m" />
+            <node concept="37vLTw" id="2rIdnPtSKKa" role="37vLTJ">
+              <ref role="3cqZAo" node="2rIdnPtSK0n" resolve="subtypePathHelper" />
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-            <ref role="1Pybhc" to="mqqo:5jPBdK_dIS" resolve="TestingEvaluationSession" />
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-        </node>
-      </node>
-    </node>
+  </node>
+  <node concept="312cEu" id="2rIdnPtI2$w">
+    <property role="TrG5h" value="TestingLubHelper" />
+    <node concept="2tJIrI" id="2rIdnPtI2Dm" role="jymVt" />
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+    <node concept="3clFb_" id="2rIdnPtI2E7" role="jymVt">
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+      <property role="DiZV1" value="false" />
+      <property role="od$2w" value="false" />
+      <node concept="37vLTG" id="2rIdnPtI2Eh" role="3clF46">
+        <property role="TrG5h" value="nextLeft" />
+        <node concept="3uibUv" id="2rIdnPtI2Ei" role="1tU5fm">
+          <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
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+      <node concept="2AHcQZ" id="2rIdnPtI2Ep" role="2AJF6D">
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+    <node concept="3clFb_" id="2rIdnPtJYwS" role="jymVt">
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+      <node concept="37vLTG" id="2rIdnPtJYH0" role="3clF46">
+        <property role="TrG5h" value="left" />
+        <node concept="3uibUv" id="2rIdnPtJYHz" role="1tU5fm">
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+      <node concept="37vLTG" id="2rIdnPtJYI1" role="3clF46">
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+        <node concept="3uibUv" id="2rIdnPtJYJ1" role="1tU5fm">
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+            <property role="TrG5h" value="resultList" />
+            <node concept="3uibUv" id="3KV3FXk0pl4" role="1tU5fm">
+              <ref role="3uigEE" to="33ny:~List" resolve="List" />
+              <node concept="3uibUv" id="3KV3FXk0pl7" role="11_B2D">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
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+                  <node concept="Xl_RD" id="2rIdnPtxCHG" role="37wK5m">
+                    <property role="Xl_RC" value="could not find LUB" />
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+              </node>
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+              <node concept="3cpWs6" id="3KV3FXk0sZe" role="3cqZAp">
+                <node concept="2YIFZM" id="2rIdnPtxCFF" role="3cqZAk">
+                  <ref role="1Pybhc" to="kqnc:3KV3FXk1mCr" resolve="BaseHelper" />
+                  <ref role="37wK5l" to="kqnc:5H6hZahoMly" resolve="buildResult" />
+                  <node concept="37vLTw" id="2rIdnPtxCFG" role="37wK5m">
+                    <ref role="3cqZAo" node="3KV3FXk0pld" resolve="resultList" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="2rIdnPtI2Gd" role="jymVt" />
+    <node concept="3Tm1VV" id="2rIdnPtI2$x" role="1B3o_S" />
+    <node concept="3uibUv" id="2rIdnPtI2CT" role="1zkMxy">
+      <ref role="3uigEE" to="kqnc:5H6hZahmlon" resolve="LubHelper" />
+    </node>
+  </node>
+  <node concept="312cEu" id="2rIdnPtSIli">
+    <property role="TrG5h" value="TestingSubtypePathHelper" />
+    <node concept="2tJIrI" id="2rIdnPtSIlv" role="jymVt" />
+    <node concept="3clFbW" id="2rIdnPtSIWu" role="jymVt">
+      <node concept="3cqZAl" id="2rIdnPtSIWw" role="3clF45" />
+      <node concept="3Tmbuc" id="2rIdnPtSIXb" role="1B3o_S" />
+      <node concept="3clFbS" id="2rIdnPtSIWy" role="3clF47" />
+    </node>
+    <node concept="2tJIrI" id="2rIdnPtSIlx" role="jymVt" />
+    <node concept="3clFb_" id="2rIdnPtSImC" role="jymVt">
+      <property role="TrG5h" value="matches" />
+      <property role="DiZV1" value="false" />
+      <property role="od$2w" value="false" />
+      <node concept="37vLTG" id="2rIdnPtSImD" role="3clF46">
+        <property role="TrG5h" value="nextLeft" />
+        <node concept="3uibUv" id="2rIdnPtSImE" role="1tU5fm">
+          <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="2rIdnPtSImF" role="3clF46">
+        <property role="TrG5h" value="nextRight" />
+        <node concept="3uibUv" id="2rIdnPtSImG" role="1tU5fm">
+          <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+        </node>
+      </node>
+      <node concept="10P_77" id="2rIdnPtSImH" role="3clF45" />
+      <node concept="3Tmbuc" id="2rIdnPtSImI" role="1B3o_S" />
+      <node concept="3clFbS" id="2rIdnPtSImJ" role="3clF47">
+        <node concept="3clFbF" id="2rIdnPtSImK" role="3cqZAp">
+          <node concept="3nyPlj" id="2rIdnPtSImL" role="3clFbG">
+            <ref role="37wK5l" to="kqnc:3KV3FXk0aK5" resolve="matches" />
+            <node concept="37vLTw" id="2rIdnPtSImM" role="37wK5m">
+              <ref role="3cqZAo" node="2rIdnPtSImD" resolve="nextLeft" />
+            </node>
+            <node concept="37vLTw" id="2rIdnPtSImN" role="37wK5m">
+              <ref role="3cqZAo" node="2rIdnPtSImF" resolve="nextRight" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="2AHcQZ" id="2rIdnPtSImO" role="2AJF6D">
+        <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
+      </node>
+    </node>
+    <node concept="2tJIrI" id="2rIdnPtSImP" role="jymVt" />
+    <node concept="3clFb_" id="2rIdnPtSItB" role="jymVt">
+      <property role="TrG5h" value="findSubtypingPathInTest" />
+      <node concept="3uibUv" id="2rIdnPtSIu6" role="3clF45">
+        <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+      </node>
+      <node concept="3Tmbuc" id="2rIdnPtSIQD" role="1B3o_S" />
+      <node concept="3clFbS" id="2rIdnPtSItF" role="3clF47">
+        <node concept="3cpWs8" id="2rIdnPtSIFn" role="3cqZAp">
+          <node concept="3cpWsn" id="2rIdnPtSIFo" role="3cpWs9">
+            <property role="TrG5h" value="res" />
+            <node concept="3uibUv" id="2rIdnPtSIFf" role="1tU5fm">
+              <ref role="3uigEE" to="33ny:~List" resolve="List" />
+              <node concept="3uibUv" id="2rIdnPtSIFi" role="11_B2D">
+                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+              </node>
+            </node>
+            <node concept="1rXfSq" id="2rIdnPtSIFp" role="33vP2m">
+              <ref role="37wK5l" to="kqnc:3KV3FXk1jPV" resolve="doFind" />
+              <node concept="37vLTw" id="2rIdnPtSIFq" role="37wK5m">
+                <ref role="3cqZAo" node="2rIdnPtSIue" resolve="fullPaths" />
+              </node>
+              <node concept="37vLTw" id="2rIdnPtSIFr" role="37wK5m">
+                <ref role="3cqZAo" node="2rIdnPtSIui" resolve="startFrom" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="2rIdnPtSIFM" role="3cqZAp">
+          <node concept="2YIFZM" id="3KV3FXk1m8m" role="3clFbG">
+            <ref role="1Pybhc" to="kqnc:3KV3FXk1mCr" resolve="BaseHelper" />
+            <ref role="37wK5l" to="kqnc:5H6hZahoMly" resolve="buildResult" />
+            <node concept="37vLTw" id="2rIdnPtSIGf" role="37wK5m">
+              <ref role="3cqZAo" node="2rIdnPtSIFo" resolve="res" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="2rIdnPtSIue" role="3clF46">
+        <property role="TrG5h" value="fullPaths" />
+        <node concept="3uibUv" id="2rIdnPtSIud" role="1tU5fm">
+          <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="2rIdnPtSIui" role="3clF46">
+        <property role="TrG5h" value="startFrom" />
+        <node concept="3uibUv" id="2rIdnPtSIus" role="1tU5fm">
+          <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="2rIdnPtSIlC" role="jymVt" />
+    <node concept="3Tm1VV" id="2rIdnPtSIlj" role="1B3o_S" />
+    <node concept="3uibUv" id="2rIdnPtSIlt" role="1zkMxy">
+      <ref role="3uigEE" to="kqnc:3KV3FXk1fjd" resolve="PathHelper" />
+    </node>
   </node>
 </model>