proposition: Lemma neg_le_neg p q : (q <= p)%positive -> Zneg p <= Zneg q.
proof: Proof. intros; unfold Z.le; simpl. now rewrite <- Pos.compare_antisym. Qed.
imports: BinNums BinPos Pnat BinNat Bool Equalities GenericMinMax OrdersFacts ZAxioms ZProperties DecidableClass