Definition id_multimodulefun {I : UU} {rings : I -> ring} (MM : multimodule rings) : @ismultimodulefun I rings MM MM (idfun MM) := (make_dirprod (λ x y : MM, idpath _) (fun i => idfun_linear (ith_module MM i))).
Require Import UniMath.Algebra.Modules.Core. Require Import UniMath.Algebra.Modules.Multimodules. Require Import UniMath.Algebra.Monoids. Require Import UniMath.Algebra.Groups. Require Import UniMath.Algebra.RigsAndRings. Require Import UniMath.Foundations.Preamble. Require Import UniMath.MoreFoundations.Tactics.