fact: Definition BinProductArrow {a b : C} (P : BinProductCone a b) {c : C} (f : C⟦c,a⟧) (g : C⟦c,b⟧) : C⟦c,BinProductObject P⟧.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.MoreFoundations.Tactics UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Limits.Graphs.Colimits UniMath.CategoryTheory.Limits.Graphs.Limits