(* For consistency with Rplus_opp_r and Rplus_opp_l. *)
Definition Rmult_inv_r := Rinv_r.Definition Rmult_inv_l := Rinv_l.

Lemma Rmult_minus_distr_l : forall r1 r2 r3, r1 * (r2 - r3) = r1 * r2 - r1 * r3.