Definition hz_abgr_fun {X : abgr} (x : X) : hzaddabgr -> X. Proof. use setquotuniv. - exact (nat_nat_prod_abmonoid_monoidfun x). - exact (abgr_precategory_integer_fun_iscomprelfun x). Defined.
Require Import UniMath.MoreFoundations.PartA. Require Import UniMath.Algebra.Monoids. Require Import UniMath.Algebra.Groups.