Lemma commringfracrdistr (X : commring) (S : @subabmonoid (ringmultabmonoid X)) : isrdistr (commringfracop1 X S) (commringfracop2 X S). Proof. intros. apply (weqldistrrdistr (commringfracop1 X S) (commringfracop2 X S) (commringfraccomm2 X S) (commringfracldistr X S)). Defined.
Require Import UniMath.Algebra.Groups. Require Import UniMath.MoreFoundations.Sets. Require Import UniMath.MoreFoundations.Orders.