simpl in |- *; case H; intros H1 H2; simpl in |- *; auto.
rewrite <- (Zabs_eq radix); auto with zarith.
rewrite <- Zabs_Zmult.
rewrite (fun x => Zabs_eq (Zabs x)); auto with float zarith.
Qed.
Definition pPred x := Zpred (Zpos x).

Theorem maxMax1 :
forall (p : float) (z : Z),
Fbounded b p -> (Fexp p <= z)%Z -> (Fabs p <= Float (pPred (vNum b)) z)%R.