fact: Definition refineEquivFun {fDom : list Type} {fCod : Type} (fSet' fSet : funType fDom fCod) : Prop := refineFun fSet fSet' /\ refineFun fSet' fSet.
imports: Fiat.Common.Coq__8_4__8_5__Compat Coq.Sets.Ensembles Coq.ZArith.ZArith Coq.Classes.Morphisms Coq.Classes.SetoidTactics Fiat.Computation Fiat.Computation.SetoidMorphisms Coq.Logic.FunctionalExtensionality