fact: Definition free_abmonoid (X : hSet) : abmonoid := abmonoid_of_monoid (free_abmonoid' X) (iscomm_free_abmonoid X).
imports: UniMath.MoreFoundations.Subtypes UniMath.MoreFoundations.Sets UniMath.Algebra.Monoids UniMath.Algebra.Groups UniMath.Algebra.IteratedBinaryOperations UniMath.Combinatorics.Lists