fact: Definition SubEnsembleInsert {A} (a : A) (ens ens' : Ensemble A) : Prop := forall (a' : A), ens' a' -> EnsembleInsert a ens a'.
imports: Coq.Sets.Ensembles Coq.Lists.List Coq.Strings.String Fiat.Common Fiat.Computation Fiat.ADT.ADTSig Fiat.ADT.Core Fiat.ADT.ComputationalADT Fiat.Common.BoundedLookup Fiat.Common.ilist Fiat.ADTNotation.BuildADTSig Fiat.Common.Coq__8_4__8_5__Compat