proposition: Lemma is_precategory_fld_precategory_data : is_precategory fld_precategory_data.
proof: Proof. use make_is_precategory_one_assoc. - intros a b f. use fld_id_left. - intros a b f. use fld_id_right. - intros a b c d f g h. use fld_assoc. Qed.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.Foundations.UnivalenceAxiom UniMath.Algebra.BinaryOperations UniMath.Algebra.Monoids UniMath.Algebra.RigsAndRings UniMath.Algebra.Domains_and_Fields UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence