proposition: Proposition is_homotopical_functor_is_prop {C C' : homotopical_category} (F : functor C C') : isaprop (is_homotopical_functor F).
proof: Proof. repeat (apply impred ; intro). apply (pr21 C'). Defined.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Monics UniMath.CategoryTheory.Epis UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Isos