fact: Definition is_univalent_bincoprod_of_category {C₁ C₂ : category} (HC₁ : is_univalent C₁) (HC₂ : is_univalent C₂) : is_univalent (bincoprod_of_category C₁ C₂).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.whiskering