proposition: Lemma spec_min : forall n m, [min n m] == Qmin [n] [m].
proof: Proof. unfold min, Qmin, GenericMinMax.gmin. intros. rewrite spec_compare; destruct Qcompare; auto with qarith. Qed.
imports: BigNumPrelude Lia QArith Qcanon Qpower Qminmax NSig ZSig QSig