Lemma BinProductArrowEta (a b : C) (P : BinProductCone a b) (c : C) (f : C⟦c,BinProductObject P⟧) : f = BinProductArrow P (f · BinProductPr1 P) (f · BinProductPr2 P). Proof. now apply BinProductArrowUnique. Qed.
Require Import UniMath.Foundations.PartD. Require Import UniMath.Foundations.Propositions. Require Import UniMath.Foundations.Sets. Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Limits.Graphs.Colimits. Require Import UniMath.CategoryTheory.Limits.Graphs.Limits.