proposition: Lemma ErrFMA_bounded_simpl: format r1 /\ format r2 /\ format r3.
proof: Proof. Proof with auto with typeclass_instances. apply ErrFMA_bounded; try assumption. case U1; intros H; [now left|right]. apply Rle_trans with (2:=H); apply bpow_le. lia. Qed.
imports: Psatz Core Plus_error Mult_error Operations Sterbenz Pff Pff2FlocqAux Nat2Z_compat