Definition ith_module {I : UU} {rings : I -> ring} (MM : multimodule rings) (i : I) : module (rings i) := (pr1multimodule MM,, pr2multimodule MM i).
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.