fact: Definition fixpoint_dcpo : dcpo := sub_dcpo X (λ x, f x = x)%logic lub_fixpoint.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.OrderTheory.Posets.Basics UniMath.OrderTheory.Posets.MonotoneFunctions UniMath.OrderTheory.Posets.PointedPosets UniMath.OrderTheory.DCPOs.Core.DirectedSets UniMath.OrderTheory.DCPOs.Core.Basics UniMath.OrderTheory.DCPOs.Examples.SubDCPO UniMath.OrderTheory.DCPOs.Core.ScottContinuous