fact: Definition CCDRdiv {X : ConstructiveCommutativeDivisionRig} (x y : X) (Hy0 : y ≠ CCDRzero) : X := CCDRmult x (CCDRinv y Hy0).
imports: UniMath.Algebra.DivisionRig UniMath.Algebra.Domains_and_Fields UniMath.Algebra.Apartness UniMath.MoreFoundations.Tactics