fact: Definition binswap_pair_functor {C D : category} : (C × D) ⟶ (D × C) := bindelta_functor (C × D) ∙ pair_functor (pr2_functor C D) (pr1_functor C D).
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