fact: Definition minusNonnegativeReals_eq_zero : ∏ x y : NonnegativeReals, x <= y -> x - y = 0 := Dcuts_minus_eq_zero.
imports: UniMath.MoreFoundations.Orders UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.Notations UniMath.RealNumbers.Sets UniMath.Algebra.ConstructiveStructures UniMath.OrderTheory.Lattice.Lattice UniMath.RealNumbers.Prelim UniMath.RealNumbers.NonnegativeRationals