fact: Definition ismultmonoidfuntocommringfrac (X : commring) (S : @subabmonoid (ringmultabmonoid X)) : @ismonoidfun (ringmultmonoid X) (ringmultmonoid (commringfrac X S)) (tocommringfrac X S) := make_dirprod (isbinop2funtocommringfrac X S) (isunital2funtocommringfrac X S).
imports: UniMath.Algebra.Groups UniMath.MoreFoundations.Sets UniMath.MoreFoundations.Orders UniMath.Algebra.Monoids