Notation ZnearestA := (Znearest (Zle_bool 0)).

(* Specifications: *)
Lemma round_NA_opp : forall beta : radix, forall (fexp : Z -> Z), forall x, (round beta fexp ZnearestA (- x) = - round beta fexp ZnearestA x)%R.
Lemma round_NA_opp : forall beta : radix, forall (fexp : Z -> Z), forall x, (round beta fexp ZnearestA (- x) = - round beta fexp ZnearestA x)%R.