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