End rndNA.
Section rndN_opp.

(* Specifications: *)
Theorem Znearest_opp :
forall choice x,
Znearest choice (- x) = (- Znearest (fun t => negb (choice (- (t + 1))%Z)) x)%Z.
Theorem Znearest_opp :
forall choice x,
Znearest choice (- x) = (- Znearest (fun t => negb (choice (- (t + 1))%Z)) x)%Z.