fact: Definition submoduletosubabgr {R : ring} {M : module R} : submodule M -> @subabgr M := λ A : _, make_subgr (pr1 A) (pr1 (pr2 A)).
imports: UniMath.MoreFoundations.Subtypes UniMath.Algebra.RigsAndRings UniMath.Algebra.Monoids UniMath.Algebra.Groups UniMath.Algebra.Modules.Core