Definition invstruct_setofendabgr_inv {G : abgr} : invstruct (@ringofendabgr_op1 G) ismonoidop_ringofendabgr_op1. Proof. exact (make_invstruct (@setofendabgr_inv G) (@isinv_setofendabgr_inv G)). Defined.
Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.Algebra.RigsAndRings. Require Import UniMath.Algebra.Groups. Require Import UniMath.Algebra.Monoids.