proposition: Lemma equiv_ZeroArrow (x y : C) (Z : Zero) : @Limits.Zero.ZeroArrow C (equiv_Zero2 Z) x y = ZeroArrow Z x y.
proof: Proof. unfold Limits.Zero.ZeroArrow. unfold ZeroArrow. rewrite equiv_ZeroArrowTo. rewrite equiv_ZeroArrowFrom. apply idpath. Qed.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Limits.Graphs.Colimits UniMath.CategoryTheory.Limits.Graphs.Limits UniMath.CategoryTheory.Limits.Graphs.Initial UniMath.CategoryTheory.Limits.Graphs.Terminal UniMath.CategoryTheory.Limits.Zero