fact: Definition nattohzandgeh ( n m : nat ) ( is : natgeh n m ) : hzgeh ( nattohz n ) ( nattohz m ) := nattohzandleh _ _ is .
imports: UniMath.Foundations.NaturalNumbers UniMath.MoreFoundations.PartA UniMath.MoreFoundations.NegativePropositions UniMath.Algebra.Monoids UniMath.Algebra.Groups UniMath.Algebra.RigsAndRings UniMath.NumberSystems.NaturalNumbersAlgebra