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+implementation module StdDynSet
+
+import StdEnv
+import StdDynamic
+
+class Set a | TC, ==, toString a
+
+:: Set = Set [Dynamic]
+
+instance zero Set
+where zero = abort "zero instance voor Set nog niet geimplementeerd.\n"
+
+instance toString Set
+where toString a = abort "toString instance voor Set nog niet geimplementeerd.\n"
+
+instance == Set
+where == a b = abort "== instance voor Set nog niet geimplementeerd.\n"
+
+toSet :: a -> Set | Set a
+toSet a = abort "toSet nog niet geimplementeerd.\n"
+
+nrOfElts :: Set -> Int
+nrOfElts a = abort "nrOfElts nog niet geimplementeerd.\n"
+
+isEmptySet :: Set -> Bool
+isEmptySet a = abort "isEmptySet nog niet geimplementeerd.\n"
+
+memberOfSet :: a Set -> Bool | Set a
+memberOfSet x a = abort "memberOfSet nog niet geimplementeerd.\n"
+
+isSubset :: Set Set -> Bool
+isSubset a b = abort "isSubset nog niet geimplementeerd.\n"
+
+isStrictSubset :: Set Set -> Bool
+isStrictSubset a b = abort "isStrictSubset nog niet geimplementeerd.\n"
+
+union :: Set Set -> Set
+union a b = abort "union nog niet geimplementeerd.\n"
+
+intersection :: Set Set -> Set
+intersection a b = abort "intersection nog niet geimplementeerd.\n"
+
+without :: Set Set -> Set
+without a b = abort "without nog niet geimplementeerd.\n"