fact: Definition nat_nat_fun_unel {X : abgr} (x : X) (n : nat) : nat_nat_to_monoid_fun x (make_dirprod n n) = unel X.
imports: UniMath.Foundations.NaturalNumbers UniMath.MoreFoundations.PartA UniMath.MoreFoundations.NegativePropositions UniMath.Algebra.Monoids UniMath.Algebra.Groups UniMath.Algebra.RigsAndRings UniMath.NumberSystems.NaturalNumbersAlgebra