Definition isbinop2funtocommringfrac (X : commring) (S : @subabmonoid (ringmultabmonoid X)) : @isbinopfun (ringmultmonoid X) (ringmultmonoid (commringfrac X S)) (tocommringfrac X S) := isbinopfuntoabmonoidfrac (ringmultabmonoid X) S.
Require Import UniMath.Algebra.Groups. Require Import UniMath.MoreFoundations.Sets. Require Import UniMath.MoreFoundations.Orders.