Definition commringfracunel2 (X : commring) (S : @subabmonoid (ringmultabmonoid X)) : setquot (eqrelcommringfrac X S) := setquotpr (eqrelcommringfrac X S) (commringfracunel2int X S).
Require Import UniMath.Algebra.Groups. Require Import UniMath.MoreFoundations.Sets. Require Import UniMath.MoreFoundations.Orders.