fact: Definition free_abmonoid' (X : hSet) : monoid := presented_monoid X (free_abmonoid_hrel X).
imports: UniMath.MoreFoundations.Subtypes UniMath.MoreFoundations.Sets UniMath.Algebra.Monoids UniMath.Algebra.Groups UniMath.Algebra.IteratedBinaryOperations UniMath.Combinatorics.Lists