fact: Definition Equiv elt (eq_elt:elt->elt->Prop) m m' := (forall k, In k m <-> In k m') /\ (forall k e e', MapsTo k e m -> MapsTo k e' m' -> eq_elt e e').
imports: Coq.PArith.BinPos Coq.PArith.Pnat Coq.Arith.Arith Coq.FSets.FMapInterface Coq.FSets.FMapPositive Fiat.Parsers.ContextFreeGrammar.Carriers Fiat.Common.List.ListFacts Fiat.Common.List.ListMorphisms Fiat.Common.Prod