diff --git a/coderules/languages/jetbrains.mps.logic/runtime/models/jetbrains.mps.logic.dataform.mps b/coderules/languages/jetbrains.mps.logic/runtime/models/jetbrains.mps.logic.dataform.mps
index 41a89294..cc620ff7 100644
--- a/coderules/languages/jetbrains.mps.logic/runtime/models/jetbrains.mps.logic.dataform.mps
+++ b/coderules/languages/jetbrains.mps.logic/runtime/models/jetbrains.mps.logic.dataform.mps
@@ -123,10 +123,7 @@
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         <child id="1070534934092" name="expression" index="10QFUP" />
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-        <property id="1240249534625" name="isVolatile" index="34CwA1" />
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         <property id="1221565133444" name="isFinal" index="1EXbeo" />
@@ -137,9 +134,7 @@
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@@ -153,7 +148,6 @@
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@@ -204,7 +198,6 @@
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-        <node concept="3Tmbuc" id="29_L5zQRvJx" role="1B3o_S" />
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-              </node>
-              <node concept="2YIFZM" id="6YPNC4NT2Nl" role="3uHU7w">
-                <ref role="37wK5l" to="wyt6:~String.valueOf(java.lang.Object)" resolve="valueOf" />
-                <ref role="1Pybhc" to="wyt6:~String" resolve="String" />
-                <node concept="2OqwBi" id="29_L5zQROic" role="37wK5m">
-                  <node concept="37vLTw" id="29_L5zQRMWS" role="2Oq$k0">
-                    <ref role="3cqZAo" node="29_L5zQRDDl" resolve="term" />
-                  </node>
-                  <node concept="liA8E" id="29_L5zQRPCe" role="2OqNvi">
-                    <ref role="37wK5l" to="yt73:~Term.symbol()" resolve="symbol" />
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-            </node>
-          </node>
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-      <node concept="2tJIrI" id="5s497Vr4oHY" role="jymVt" />
-      <node concept="312cEg" id="3JgCwkqd8xx" role="jymVt">
-        <property role="TrG5h" value="success" />
-        <node concept="3Tm6S6" id="3JgCwkqd8xy" role="1B3o_S" />
-        <node concept="10P_77" id="3JgCwkqd8xz" role="1tU5fm" />
-        <node concept="3clFbT" id="3JgCwkqd8x$" role="33vP2m">
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-      <node concept="312cEg" id="3JgCwkqd8x_" role="jymVt">
-        <property role="TrG5h" value="result" />
-        <node concept="3Tm6S6" id="3JgCwkqd8xA" role="1B3o_S" />
-        <node concept="3uibUv" id="3JgCwkqd8xB" role="1tU5fm">
-          <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
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-      <node concept="312cEg" id="3JgCwkqd8xC" role="jymVt">
-        <property role="34CwA1" value="false" />
-        <property role="eg7rD" value="false" />
-        <property role="TrG5h" value="symbolPath" />
-        <property role="3TUv4t" value="false" />
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-          <property role="TrG5h" value="path" />
-          <node concept="8X2XB" id="29_L5zQTAE4" role="1tU5fm">
-            <node concept="3uibUv" id="29_L5zQT_gk" role="8Xvag">
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-        <property role="TrG5h" value="matches" />
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-                      <node concept="2YIFZM" id="29_L5zQTt4_" role="37wK5m">
-                        <ref role="37wK5l" to="wyt6:~String.valueOf(java.lang.Object)" resolve="valueOf" />
-                        <ref role="1Pybhc" to="wyt6:~String" resolve="String" />
-                        <node concept="2OqwBi" id="29_L5zQTnC7" role="37wK5m">
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-                            <ref role="3cqZAo" node="29_L5zQSM3O" resolve="term" />
-                          </node>
-                          <node concept="liA8E" id="29_L5zQToZJ" role="2OqNvi">
-                            <ref role="37wK5l" to="yt73:~Term.symbol()" resolve="symbol" />
-                          </node>
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-                  </node>
-                  <node concept="liA8E" id="29_L5zQTxaL" role="2OqNvi">
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-              <node concept="37vLTw" id="29_L5zQSSND" role="2ZW6bz">
-                <ref role="3cqZAo" node="29_L5zQSM3M" resolve="symbol" />
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-            <node concept="9aQIb" id="29_L5zQSYbu" role="9aQIa">
-              <node concept="3clFbS" id="29_L5zQSYbv" role="9aQI4">
-                <node concept="3cpWs6" id="29_L5zQT0Qh" role="3cqZAp">
-                  <node concept="3nyPlj" id="29_L5zQSM43" role="3cqZAk">
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-                    <node concept="37vLTw" id="29_L5zQSM41" role="37wK5m">
-                      <ref role="3cqZAo" node="29_L5zQSM3M" resolve="symbol" />
-                    </node>
-                    <node concept="37vLTw" id="29_L5zQSM42" role="37wK5m">
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-                    </node>
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-                </node>
-              </node>
-            </node>
-          </node>
-        </node>
-        <node concept="2AHcQZ" id="29_L5zQSM40" role="2AJF6D">
-          <ref role="2AI5Lk" to="wyt6:~Override" resolve="Override" />
-        </node>
-      </node>
-      <node concept="3Tm6S6" id="428_4iYutD6" role="1B3o_S" />
-      <node concept="3uibUv" id="29_L5zQSJo4" role="1zkMxy">
-        <ref role="3uigEE" node="3JgCwkqd8v8" resolve="Finders.ValueRoleFinder" />
-        <node concept="16syzq" id="29_L5zQTVMS" role="11_B2D">
-          <ref role="16sUi3" node="29_L5zQTT2V" resolve="V" />
-        </node>
-      </node>
-      <node concept="16euLQ" id="29_L5zQTT2V" role="16eVyc">
-        <property role="TrG5h" value="V" />
-      </node>
-    </node>
-    <node concept="2tJIrI" id="29_L5zQSwpG" role="jymVt" />
-    <node concept="3Tm1VV" id="3JgCwkqd3K8" role="1B3o_S" />
-  </node>
 </model>
 
diff --git a/coderules/solutions/jetbrains.mps.logic.test/models/jetbrains/mps/logic/test/logical@tests.mps b/coderules/solutions/jetbrains.mps.logic.test/models/jetbrains/mps/logic/test/logical@tests.mps
index 73508c34..c09bde24 100644
--- a/coderules/solutions/jetbrains.mps.logic.test/models/jetbrains/mps/logic/test/logical@tests.mps
+++ b/coderules/solutions/jetbrains.mps.logic.test/models/jetbrains/mps/logic/test/logical@tests.mps
@@ -286,9 +286,7 @@
       </concept>
       <concept id="1151702311717" name="jetbrains.mps.baseLanguage.collections.structure.ToListOperation" flags="nn" index="ANE8D" />
       <concept id="1237721394592" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerCreator" flags="nn" index="HWqM0">
-        <child id="1237721435808" name="initValue" index="HW$Y0" />
         <child id="1237721435807" name="elementType" index="HW$YZ" />
-        <child id="1237731803878" name="copyFrom" index="I$8f6" />
       </concept>
       <concept id="1160600644654" name="jetbrains.mps.baseLanguage.collections.structure.ListCreatorWithInit" flags="nn" index="Tc6Ow" />
       <concept id="1160612413312" name="jetbrains.mps.baseLanguage.collections.structure.AddElementOperation" flags="nn" index="TSZUe" />
@@ -1995,808 +1993,6 @@
       </node>
     </node>
   </node>
-  <node concept="3s_ewN" id="3t7_2Fg_OJG">
-    <property role="3s_ewP" value="Finders" />
-    <node concept="3Tm1VV" id="3t7_2Fg_OJH" role="1B3o_S" />
-    <node concept="3s_gsd" id="3t7_2Fg_OJI" role="3s_ewO">
-      <node concept="3s$Bmu" id="3t7_2Fg_OUo" role="3s_gse">
-        <property role="3s$Bm0" value="list" />
-        <node concept="3cqZAl" id="3t7_2Fg_OUp" role="3clF45" />
-        <node concept="3Tm1VV" id="3t7_2Fg_OUq" role="1B3o_S" />
-        <node concept="3clFbS" id="3t7_2Fg_OUr" role="3clF47">
-          <node concept="3cpWs8" id="3t7_2Fg_PE8" role="3cqZAp">
-            <node concept="3cpWsn" id="3t7_2Fg_PE9" role="3cpWs9">
-              <property role="TrG5h" value="first" />
-              <node concept="3uibUv" id="3t7_2Fg_PEa" role="1tU5fm">
-                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-              </node>
-              <node concept="1oi1Uc" id="3t7_2Fg_PFn" role="33vP2m">
-                <node concept="1oi5UN" id="3t7_2Fg_PFB" role="1oi0x0">
-                  <node concept="1oi5Wm" id="3t7_2Fg_PFC" role="1ojpOf">
-                    <property role="TrG5h" value="concept" />
-                    <node concept="1oi5XN" id="3t7_2Fg_PFD" role="1oi5zu">
-                      <property role="1oi5yK" value="ClassifierType" />
-                    </node>
-                  </node>
-                  <node concept="1oi5Wm" id="3t7_2Fg_PFE" role="1ojpOf">
-                    <property role="TrG5h" value="classifier" />
-                    <node concept="1oi5XN" id="3t7_2Fg_PFF" role="1oi5zu">
-                      <property role="1oi5yK" value="Object" />
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-          <node concept="3cpWs8" id="3t7_2Fg_PFV" role="3cqZAp">
-            <node concept="3cpWsn" id="3t7_2Fg_PFW" role="3cpWs9">
-              <property role="TrG5h" value="second" />
-              <node concept="3uibUv" id="3t7_2Fg_PFX" role="1tU5fm">
-                <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="DataForm" />
-              </node>
-              <node concept="1oi1Uc" id="3t7_2Fg_PFY" role="33vP2m">
-                <node concept="1oi5UN" id="3t7_2Fg_PHa" role="1oi0x0">
-                  <node concept="1oi5Wm" id="3t7_2Fg_PHb" role="1ojpOf">
-                    <property role="TrG5h" value="concept" />
-                    <node concept="1oi5XN" id="3t7_2Fg_PHc" role="1oi5zu">
-                      <property role="1oi5yK" value="ClassifierType" />
-                    </node>
-                  </node>
-                  <node concept="1oi5Wm" id="3t7_2Fg_PHd" role="1ojpOf">
-                    <property role="TrG5h" value="classifier" />
-                    <node concept="1oi5XN" id="3t7_2Fg_PHe" role="1oi5zu">
-                      <property role="1oi5yK" value="Iterable" />
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