fact: Definition fmap_is_chain {P Q} (f : posetmorphism P Q) {I : UU} (p : I -> P) : is_chain p -> is_chain (f ∘ p).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.Combinatorics.WellOrderedSets UniMath.OrderTheory.DCPOs.AlternativeDefinitions.Dcpo