proposition: Lemma functor_op_rm_op_eq {C D:category} (F : C^op ⟶ D^op) : functorOp (functorRmOp F) = F.
proof: Proof. apply functor_eq. { apply homset_property. } unshelve refine (total2_paths_f _ _); reflexivity. Qed.
imports: UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.opp_precat UniMath.CategoryTheory.yoneda UniMath.CategoryTheory.Categories.HSET.Core UniMath.CategoryTheory.Categories.HSET.MonoEpiIso UniMath.Foundations.Preamble UniMath.Foundations.Sets UniMath.MoreFoundations.Tactics