fact: Definition sub_precategory_morphisms {C : category}(C':sub_precategories C) (a b : C) : UU := sub_precategory_predicate_morphisms C' a b.
imports: UniMath.Foundations.Sets UniMath.MoreFoundations.PartA UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Isos