fact: Definition opp_precat_data (C : precategory_data) : precategory_data := tpair _ _ (tpair _ (λ c : opp_precat_ob_mor C, identity c) (λ (a b c : opp_precat_ob_mor C) f g, g · f)).
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.FunctorCategory