Definition setofendabgr_un1 {G: abgr} : monoidfun G G. Proof. apply (@monoidfunconstr _ _ (idfun G)). apply make_dirprod. - intros x x'. reflexivity. - reflexivity. Defined.
Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.Algebra.RigsAndRings. Require Import UniMath.Algebra.Groups. Require Import UniMath.Algebra.Monoids.