Definition isrefl'_posetRelation {P : Poset} {x y : P} : x = y ⇒ x ≤ y. Proof. intros e; destruct e. apply isrefl_posetRelation. Defined.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.OrderTheory.OrderedSets.WellOrderedSets. Require Import UniMath.OrderTheory.DCPOs.AlternativeDefinitions.Dcpo. Require Import UniMath.OrderTheory.Posets.Subposets.