Definition isantisymmhzgeh ( n m : hz ) : hzgeh n m -> hzgeh m n -> n = m := λ gnm gmn, isantisymmhzleh _ _ gmn gnm .
Require Import UniMath.MoreFoundations.PartA. Require Import UniMath.Algebra.Monoids. Require Import UniMath.Algebra.Groups.