proposition: Lemma map_consVar : map f1 f2 ((VarAsn B x b) :: E) = (VarAsn B x (f1 b)) :: map f1 f2 E.
proof: Proof. clear. reflexivity. Qed.
imports: Coq.FSets.FSets Coq.Lists.List Coq.Logic.Decidable Metalib.CoqFSetDecide Metalib.CoqListFacts Metalib.LibTactics Metalib.MetatheoryAtom Metalib.LibTactics