proposition: Proposition is_homotopical_is_prop (C : category_with_weq) : isaprop (is_homotopical C).
proof: Proof. apply two_of_six_is_prop. 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