proposition: Lemma InitialArrowUnique {C : precategory} {I : Initial C} {a : C} (f : C⟦InitialObject I,a⟧) : f = InitialArrow I _.
proof: Proof. exact (pr2 (pr2 I _ ) _ ). Qed.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.MoreFoundations.Tactics UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.FunctorCategory UniMath.CategoryTheory.Epis UniMath.CategoryTheory.Limits.Coproducts