fact: Parameter div_UP_correct : forall p x y, ((is_real_ub x /\ is_pos_real y) \/ (is_real_lb x /\ is_neg_real y)) -> valid_ub (div_UP p x y) = true /\ le_upper (Xdiv (toX x) (toX y)) (toX (div_UP p x y)).
imports: Coq(ZArith Reals) Flocq(Zaux Raux) Xreal Basic