fact: Definition nattohzandminus ( n m : nat ) ( is : natgeh n m ) : ( nattohz ( n - m )%nat ) = ( nattohz n - nattohz m ) .
imports: UniMath.Foundations.NaturalNumbers UniMath.MoreFoundations.PartA UniMath.MoreFoundations.NegativePropositions UniMath.Algebra.Monoids UniMath.Algebra.Groups UniMath.Algebra.RigsAndRings UniMath.NumberSystems.NaturalNumbersAlgebra