Definition is_functor_mlift : is_functor functor_data_from_relmodule. Proof. split. - red; intro a. apply (mlift_id X). - red. intros. cbn. apply pathsinv0. apply mlift_mlift. Defined.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.Core.NaturalTransformations. Require Import UniMath.CategoryTheory.Monads.RelativeMonads.