fact: Definition is_z_isomorphism_indexed_cat_comp {x y z : C} (f : x --> y) (g : y --> z) (xx : Φ x) : is_z_isomorphism (indexed_cat_comp Φ f g xx).
imports: UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations