diff --git a/src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java b/src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java
index 64e08376..0ac65b33 100644
--- a/src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java
+++ b/src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java
@@ -827,7 +827,7 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 							Set<UnifyPair> compRes = fstElemRes.stream().filter(x -> vars_a.contains(((PlaceholderType)x.getLhsType()))).collect(Collectors.toCollection(HashSet::new));
 						
 							//Alle Variablen bestimmen die nicht hinzugefügt wurden in a_last
-							System.out.println(a_last);
+							//System.out.println(a_last);
 							a_last.forEach(x -> {writeLog("a_last_elem:" + x + " basepair: " + x.getBasePair());});
 							List<PlaceholderType> varsLast_a = 
 									a_last.stream().filter(x -> ((x.getLhsType().getName().equals(x.getBasePair().getLhsType().getName())
@@ -900,7 +900,7 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 				Iterator<Set<UnifyPair>> nextSetasListIt = new ArrayList<Set<UnifyPair>>(nextSetasList).iterator();
 				if (variance == 1) {
 					System.out.println("");
-					writeLog("a: " + a.toString());
+					writeLog("a: " + rekTiefe + " variance: " + variance + a.toString());
 					while (nextSetasListIt.hasNext()) {
 						Set<UnifyPair> a_next = nextSetasListIt.next();
 						if (a.equals(a_next) || 
@@ -916,7 +916,7 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 				}
 				else { if (variance == -1) {
 					System.out.println("");
-					writeLog("a: " + a.toString());
+					writeLog("a: " + rekTiefe + " variance: " + variance + a.toString());
 					while (nextSetasListIt.hasNext()) {
 						Set<UnifyPair> a_next = nextSetasListIt.next();
 						if (a.equals(a_next) || 
@@ -931,8 +931,10 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>>  {
 					}
 				}
 				else if (variance == 0) {
+					writeLog("a: " + rekTiefe + " variance: " + variance + a.toString());
 					break;
 				}
+				writeLog("a: " + rekTiefe + " variance: " + variance + a.toString());
 				}
 			}
 			 /* auskommentiert um alle Max und min Betrachtung auszuschalten ENDE */ 
diff --git a/src/main/java/de/dhbwstuttgart/typeinference/unify/model/FiniteClosure.java b/src/main/java/de/dhbwstuttgart/typeinference/unify/model/FiniteClosure.java
index f928ea24..07c86457 100644
--- a/src/main/java/de/dhbwstuttgart/typeinference/unify/model/FiniteClosure.java
+++ b/src/main/java/de/dhbwstuttgart/typeinference/unify/model/FiniteClosure.java
@@ -53,6 +53,16 @@ implements IFiniteClosure  {
 	 */
 	private Set<UnifyPair> pairs;
 	
+	/**
+	 * Hastable fuer die greater-Werte, damit sie nicht doppelt berechnet werden muessen
+	 */
+	Hashtable<hashKeyType, Set<UnifyType>> greaterHash = new Hashtable<>();
+	
+	/**
+	 * Hastable fuer die smaller-Werte, damit sie nicht doppelt berechnet werden muessen
+	 */
+	Hashtable<hashKeyType, Set<UnifyType>> smallerHash = new Hashtable<>();
+	
 	/**
 	 * Creates a new instance using the inheritance tree defined in the pairs.
 	 */
@@ -106,12 +116,29 @@ implements IFiniteClosure  {
 	 */
 	@Override
 	public Set<UnifyType> smaller(UnifyType type, Set<UnifyType> fBounded) {
+		
+		Set<UnifyType> ret;
+		if ((ret = smallerHash.get(new hashKeyType(type))) != null) {
+			//System.out.println(greaterHash);
+			return new HashSet<>(ret);
+		}
+		
 		if(type instanceof FunNType)
 			return computeSmallerFunN((FunNType) type, fBounded);
 		
 		Set<Pair<UnifyType,Set<UnifyType>>> ts = new HashSet<>();
 		ts.add(new Pair<>(type, fBounded));
-		return computeSmaller(ts);
+		Set<UnifyType> result = computeSmaller(ts);
+		smallerHash.put(new hashKeyType(type), result);
+		/*
+		try { 
+			logFile.write("\ntype: " + type + "\nret: " + ret + "\nresult: " + result);//"smallerHash: " + greaterHash.toString());
+			logFile.flush();
+		}
+		catch (IOException e) {
+			System.err.println("no LogFile");
+		}*/
+		return result;
 	}
 	
 	/**
@@ -205,6 +232,13 @@ implements IFiniteClosure  {
 	//Eingefuegt PL 2018-05-24 F-Bounded Problematik
 	public Set<UnifyType> greater(UnifyType type, Set<UnifyType> fBounded) {
 		
+		Set<UnifyType> ret;
+		if ((ret = greaterHash.get(new hashKeyType(type))) != null) {
+			//System.out.println(greaterHash);
+			return new HashSet<>(ret);
+		}
+	
+		
 		if(type instanceof FunNType) {
 			return computeGreaterFunN((FunNType) type, fBounded); 
 		}
@@ -300,6 +334,16 @@ implements IFiniteClosure  {
 				//System.out.println("");
 			}
 		}
+		
+		greaterHash.put(new hashKeyType(type), result);
+		/*
+		try { 
+			logFile.write("\ntype: " + type + "\nret: " + ret + "\nresult: " + result);//"greaterHash: " + greaterHash.toString());
+			logFile.flush();
+		}
+		catch (IOException e) {
+			System.err.println("no LogFile");
+		}*/
 		return result;
 	}
 	
@@ -634,8 +678,15 @@ implements IFiniteClosure  {
 					return 0;
 				}
 		}
-		if ((right instanceof PlaceholderType) && (left instanceof WildcardType)) {
-			return 0;
+		if (right instanceof PlaceholderType) {//&& (left instanceof WildcardType)) {PL geloescht 2019-01-15 analog zu oben
+			if ((left instanceof WildcardType) //PL eingefuegt 2019-01-15 analog zu oben
+					&& ((ex = ((WildcardType)left).wildcardedType) instanceof PlaceholderType)
+					&& ((PlaceholderType)right).getName().equals(((PlaceholderType)ex).getName())) {// ? extends a <. a oder ? super a <. a
+				return 1;
+			}
+			else {
+				return 0;
+			}
 		}
 		UnifyPair up = new UnifyPair(left, right, pairop);
 		TypeUnifyTask unifyTask = new TypeUnifyTask();