proposition: Lemma isaposetmorphism_idfun {P : Poset} : isaposetmorphism (idfun P).
proof: Proof. intros ? ? ?; assumption. Defined.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.Combinatorics.WellOrderedSets UniMath.OrderTheory.DCPOs.AlternativeDefinitions.Dcpo