fact: Definition commringfracop2 (X : commring) (S : @subabmonoid (ringmultabmonoid X)) : binop (setquotinset (eqrelcommringfrac X S)) := abmonoidfracop (ringmultabmonoid X) S.
imports: UniMath.Algebra.Groups UniMath.MoreFoundations.Sets UniMath.MoreFoundations.Orders UniMath.Algebra.Monoids