proposition: Lemma equiv_isInitial2 (c : C) : Limits.Initial.isInitial C c <- isInitial c.
proof: Proof. intros X. set (XI := make_Initial c X). intros b. use tpair. - exact (InitialArrow XI b). - intros t. use (InitialArrowUnique XI b). Qed.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.MoreFoundations.Tactics UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Limits.Graphs.Colimits UniMath.CategoryTheory.Limits.Graphs.EqDiag UniMath.CategoryTheory.Limits.Initial