Lemma multimodule_same_abgrp {I : UU} {rings : I -> ring} (MM : multimodule rings) (i : I) : @paths abgr MM (ith_module MM i). Proof. reflexivity. Defined.
Require Import UniMath.Algebra.Modules.Core. Require Import UniMath.Algebra.Groups. Require Import UniMath.Algebra.Monoids. Require Import UniMath.Algebra.RigsAndRings. Require Import UniMath.Foundations.Preamble. Require Import UniMath.Foundations.Sets.