F_rec2@{i j} {T:Type@{i} } {sT : IsHSet T} : forall (dclass : Frac R -> Frac R -> T) (dequiv : forall x1 x2, equiv x1 x2 -> forall y1 y2, equiv y1 y2 -> dclass x1 y1 = dclass x2 y2), F -> F -> T := @quotient_rec2@{UR UR UR j i} _ _ _ _ _ (Build_HSet _).
Require Import HoTT.HIT.quotient. Require Import Import Frac.