Definition free_abgrfun {X Y : hSet} (f : X → Y) : monoidfun (free_abgr X) (free_abgr Y) := free_abgr_extend (free_abgr_unit ∘ f).
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.