fact: Axiom binds_map_1 : (forall a b, f a = f b -> a = b) -> binds x (f a) (map f E) -> binds x a E.
imports: Coq.FSets.FSets Coq.Lists.List Coq.Logic.Decidable Metalib.CoqFSetDecide Metalib.CoqListFacts Metalib.AssocList Metalib.MetatheoryAtom Metalib.LibTactics