fact: Definition sub_precategory_comp (C : category) (C':sub_precategories C) : ∏ (a b c: ob C) (f: a --> b) (g : b --> c), sub_precategory_predicate_morphisms C' _ _ f -> sub_precategory_predicate_morphisms C' _ _ g -> sub_precategory_predicate_morphisms C' _ _ (f · g) := dirprod_pr2 (pr2 C').
imports: UniMath.Foundations.Sets UniMath.MoreFoundations.PartA UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Isos