proposition: Lemma isaprop_is_setcategory (C : precategory) : isaprop (is_setcategory C).
proof: Proof. apply isapropdirprod. - apply isapropisaset. - apply isaprop_has_homsets. Defined.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors