fact: Definition image_same_upper_bounds {I} (f : I -> P) {x : P} : isupperbound f x <-> isupperbound_subtype (image f) x.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.Combinatorics.WellOrderedSets UniMath.OrderTheory.DCPOs.AlternativeDefinitions.Dcpo