fact: Definition binarySumMap {C:category} {a b:C} (sum : BinarySum a b) {c:C} : a --> c -> b --> c -> rm_opp_ob (universalObject sum) --> c := λ f g, rm_opp_mor (sum \\ (opp_mor f,,opp_mor g)).
imports: UniMath.Foundations.Preamble UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.opp_precat UniMath.CategoryTheory.yoneda UniMath.CategoryTheory.Categories.HSET.Core UniMath.CategoryTheory.Categories.HSET.MonoEpiIso UniMath.CategoryTheory.RepresentableFunctors.Bifunctor UniMath.CategoryTheory.RepresentableFunctors.Precategories UniMath.MoreFoundations.Tactics