Definition ContentsMap_IE_FUN (j12:meminj) (m1 m2 m3':Mem.mem) (b:block):
            ZMap.t memval.

Lemma ContentsMap_IE_existsT: forall (j12:meminj) (m1 m2 m3':Mem.mem), { M : PMap.t (ZMap.t memval) | fst M = ZMap.init Undef /\ forall b, PMap.get b M = ContentsMap_IE_FUN j12 m1 m2 m3' b}.