fact: Definition idto2mor_rwhisker {x y z : C} {f g : x --> y} (h : y --> z) (p : f = g) : idto2mor p ▹ h = idto2mor (maponpaths (λ q, q · h) p).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Univalence