Definition presented_abgr_pr {X : hSet} (R : hrel (free_abgr X)) : monoidfun (free_abgr X) (presented_abgr X R) := monoidquotpr _.
Require Import UniMath.MoreFoundations.Subtypes. Require Import UniMath.MoreFoundations.Sets. Require Import UniMath.Algebra.Monoids. Require Import UniMath.Algebra.Groups. Require Import UniMath.Algebra.IteratedBinaryOperations. Require Import UniMath.Combinatorics.Lists.