fact: Definition free_abmonoidfun {X Y : hSet} (f : X → Y) : monoidfun (free_abmonoid X) (free_abmonoid Y) := free_abmonoid_extend (free_abmonoid_unit ∘ f).
imports: UniMath.MoreFoundations.Subtypes UniMath.MoreFoundations.Sets UniMath.Algebra.Monoids UniMath.Algebra.Groups UniMath.Algebra.IteratedBinaryOperations UniMath.Combinatorics.Lists