fact: Definition mor1 {C D} (x x' : category_binproduct C D) (f : _ ⟦x, x'⟧) : _ ⟦ob1 x, ob1 x'⟧ := pr1 f.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.FunctorCategory UniMath.CategoryTheory.opp_precat