diff --git a/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/FamilyOfGeneratedGenerics.java b/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/FamilyOfGeneratedGenerics.java
index ca6940be..c1b44353 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/FamilyOfGeneratedGenerics.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/FamilyOfGeneratedGenerics.java
@@ -578,9 +578,9 @@ public class FamilyOfGeneratedGenerics {
             while (itRunSet.hasNext()) {
                 Pair pairRunSet = itRunSet.next();
 //                if(cons.getRight() == cons2.getLeft()) {
-                if(pairIterSet.TA2 == pairRunSet.TA1) {
+                if(pairIterSet.TA2 == pairRunSet.TA1 && pairIterSet.OperatorSmallerDot() && pairRunSet.OperatorSmallerDot()) {
 //                    TPHConstraint consToAdd = new TPHConstraint(cons.getLeft(), cons2.getRight(), Relation.EXTENDS);
-                    Pair p = new Pair(pairIterSet.TA1, pairRunSet.TA2);
+                    Pair p = new Pair(pairIterSet.TA1, pairRunSet.TA2, PairOperator.SMALLERDOT);
 //                    if (!checkForDuplicates(consToAdd,tcList)) {
                     if(!tcSet.contains(p)) {
 //                        tcList.add(consToAdd);
@@ -593,9 +593,29 @@ public class FamilyOfGeneratedGenerics {
                 }
             }
         }
+        System.out.println("tcSet: " + tcSet);
         return tcSet;
     }
 
+    public static boolean checkForDuplicatesForSets(Pair pair, Set set) {
+        Set<Pair> tempSet = set;
+        boolean hasSame = false;
+//        for (TPHConstraint tphC: tempList) {
+        Iterator<Pair> it = set.iterator();
+        while (it.hasNext()) {
+            Pair p = it.next();
+//            hasSame = constraint.getLeft() == tphC.getLeft() &&
+//                    constraint.getRight() == tphC.getRight() &&
+//                    constraint.getRel() == tphC.getRel(); //constraint already in ArrayList if true
+            hasSame = pair.TA1 == pair.TA1 &&
+                    pair.TA2 == p.TA2 &&
+                    pair.OperatorSmallerDot() && p.OperatorSmallerDot(); //constraint already in Set if true
+            if (hasSame)
+                return true;
+        }
+        return false;
+    }
+
     public static HashMap<String, List<MethodConstraint>> getMethodConstraintsWithPositionNew(List<TPHConstraint> cs, List<ClassConstraint> cs_cl, HashMap<String, List<PairTphMethod<PositionFinder.Position, String>>> posOfTphs, List<MethodAndTPH> listOfMethodsAndTph, ResultSet resSet, Set<Pair> oldCons) {
         HashMap<String, List<MethodConstraint>> tempMethodConstraintsWithPosition = new HashMap<>();
         List<MethodConstraint> newMCList = new ArrayList<>();