fact: Definition Cone_Mor (M N : Cone) := total2 (fun f : ConeTop M --> ConeTop N => ∏ j : J, f · ConeMor N j = ConeMor M j).
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.MoreFoundations.PartA UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Functors