proposition: Lemma comp_compose2' {C : folds_precat} {a b c : C} {f : folds_morphisms a b} {g : folds_morphisms b c} {h : folds_morphisms a c} : T f g h -> compose (C:=C^^) f g = h.
proof: Proof. intro H. apply pathsinv0. apply path_to_ctr. assumption. Qed.
imports: UniMath.Folds.UnicodeNotations UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.Foundations.UnivalenceAxiom UniMath.CategoryTheory.Core.Categories UniMath.Folds.folds_precat