{R : Ring} {M N : LeftModule R} (f : M $-> N) : LeftSubmodule N := Build_LeftSubmodule _ _ (grp_image f) _.
Require Import WildCat. Require Import Spaces.Nat.Core. Require Import Classes.interfaces.canonical_names. Require Import Algebra.Groups.Kernel Algebra.Groups.Image Algebra.Groups.QuotientGroup. Require Import Algebra.AbGroups.AbelianGroup Algebra.AbGroups.Biproduct. Require Import Rings.Ring.