proposition: Lemma eq_dec_refl : forall x, (if E.eq_dec x x then true else false) = true.
proof: Proof. intros; destruct (E.eq_dec _ _); eauto using E.eq_refl. Qed.
imports: Coq.FSets.FMapInterface Coq.FSets.FMapFacts Coq.Program.Program Coq.Structures.OrderedTypeEx Fiat.Common Fiat.Common.SetEq Fiat.Common.SetEqProperties Fiat.Common.List.ListFacts Fiat.Common.List.ListMorphisms Fiat.Common.LogicFacts Fiat.Common.SetoidClassInstances