proposition: Lemma CoproductArrowEta (a : I -> C) (CC : Coproduct a) (x : C) (f : CoproductObject CC --> x) : f = CoproductArrow CC (λ i, CoproductIn CC i · f).
proof: Proof. now apply CoproductArrowUnique. Qed.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.FunctorCategory UniMath.CategoryTheory.ProductCategory UniMath.CategoryTheory.Limits.Graphs.Colimits UniMath.CategoryTheory.whiskering