Definition mult_unel {R : ring} {G : abgr} (m : R -> G -> G) : UU := ∏ x : G, m ringunel2 x = x.
Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.Algebra.RigsAndRings. Require Import UniMath.Algebra.Groups. Require Import UniMath.Algebra.Monoids.