proposition: Lemma is_precategory_precat_from_folds_data : is_precategory precat_from_folds_data.
proof: Proof. apply is_precategory_one_assoc_to_two. repeat split. - apply T_I_r. - apply T_I_l. - apply T_assoc. 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