diff options
Diffstat (limited to 'theories/ZArith')
| -rw-r--r-- | theories/ZArith/Zorder.v | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/theories/ZArith/Zorder.v b/theories/ZArith/Zorder.v index 55d4d958..27eb02cd 100644 --- a/theories/ZArith/Zorder.v +++ b/theories/ZArith/Zorder.v @@ -5,7 +5,7 @@ (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) (************************************************************************) -(*i $Id: Zorder.v,v 1.6.2.1 2004/07/16 19:31:22 herbelin Exp $ i*) +(*i $Id: Zorder.v,v 1.6.2.3 2005/03/29 15:35:12 herbelin Exp $ i*) (** Binary Integers (Pierre Crégut (CNET, Lannion, France) *) @@ -849,12 +849,15 @@ intros p H1; unfold Zgt in |- *; pattern 0 at 2 in |- *; intros p H; discriminate H. Qed. -Lemma Zmult_lt_O_compat : forall n m:Z, 0 < n -> 0 < m -> 0 < n * m. +Lemma Zmult_lt_0_compat : forall n m:Z, 0 < n -> 0 < m -> 0 < n * m. intros a b apos bpos. apply Zgt_lt. apply Zmult_gt_0_compat; try apply Zlt_gt; assumption. Qed. +(* For compatibility *) +Notation Zmult_lt_O_compat := Zmult_lt_0_compat (only parsing). + Lemma Zmult_gt_0_le_0_compat : forall n m:Z, n > 0 -> 0 <= m -> 0 <= m * n. Proof. intros x y H1 H2; apply Zmult_le_0_compat; trivial. @@ -958,8 +961,11 @@ intros n m H; apply Zplus_lt_reg_l with (p := m); rewrite Zplus_minus; assumption. Qed. -Lemma Zlt_O_minus_lt : forall n m:Z, 0 < n - m -> m < n. +Lemma Zlt_0_minus_lt : forall n m:Z, 0 < n - m -> m < n. Proof. intros n m H; apply Zplus_lt_reg_l with (p := - m); rewrite Zplus_opp_l; rewrite Zplus_comm; exact H. -Qed.
\ No newline at end of file +Qed. + +(* For compatibility *) +Notation Zlt_O_minus_lt := Zlt_0_minus_lt (only parsing). |