Definition presented_gr_pr {X : hSet} (R : hrel (free_gr X)) : monoidfun (free_gr X) (presented_gr 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.