fact: Definition F_ind2@{i j} (P : F -> F -> Type@{i}) {sP : forall x y, IsHProp (P x y)} (dclass : forall x y : Frac R, P (' x) (' y)) : forall x y, P x y.
imports: HoTT.HIT.quotient HoTT.Basics.Trunc HoTT.Classes.interfaces.abstract_algebra HoTT.Classes.theory.dec_fields