fact: Definition hom_natural_postcomp {C D : precategory} {F : functor C D} { G : functor D C} (H : natural_hom_weq F G) : ∏ (A : C) (B : D) (f : F A --> B) (Y : D) (k : B --> Y), hom_weq H (f · k) = hom_weq H f · #G k := pr2 (pr2 H).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Epis UniMath.CategoryTheory.Epis UniMath.CategoryTheory.SplitMonicsAndEpis UniMath.CategoryTheory.Monics UniMath.CategoryTheory.FunctorCategory UniMath.CategoryTheory.whiskering