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authorGravatar Enrico Tassi <gareuselesinge@debian.org>2015-01-25 14:42:51 +0100
committerGravatar Enrico Tassi <gareuselesinge@debian.org>2015-01-25 14:42:51 +0100
commit7cfc4e5146be5666419451bdd516f1f3f264d24a (patch)
treee4197645da03dc3c7cc84e434cc31d0a0cca7056 /theories/Numbers/Natural/BigN/Nbasic.v
parent420f78b2caeaaddc6fe484565b2d0e49c66888e5 (diff)
Imported Upstream version 8.5~beta1+dfsg
Diffstat (limited to 'theories/Numbers/Natural/BigN/Nbasic.v')
-rw-r--r--theories/Numbers/Natural/BigN/Nbasic.v5
1 files changed, 3 insertions, 2 deletions
diff --git a/theories/Numbers/Natural/BigN/Nbasic.v b/theories/Numbers/Natural/BigN/Nbasic.v
index e545508d..8fe9ea92 100644
--- a/theories/Numbers/Natural/BigN/Nbasic.v
+++ b/theories/Numbers/Natural/BigN/Nbasic.v
@@ -1,6 +1,6 @@
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
-(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2014 *)
+(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2015 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
@@ -320,6 +320,7 @@ Section CompareRec.
Let double_to_Z_pos: forall n x, 0 <= double_to_Z n x < double_wB n :=
(spec_double_to_Z wm_base wm_to_Z wm_to_Z_pos).
+ Declare Equivalent Keys compare0_mn compare0_m.
Lemma spec_compare0_mn: forall n x,
compare0_mn n x = (0 ?= double_to_Z n x).
@@ -371,7 +372,7 @@ Section CompareRec.
intros n (H0, H); split; auto.
apply Z.lt_le_trans with (1:= H).
unfold double_wB, DoubleBase.double_wB; simpl.
- rewrite Pshiftl_nat_S, base_xO.
+ rewrite base_xO.
set (u := base (Pos.shiftl_nat wm_base n)).
assert (0 < u).
unfold u, base; auto with zarith.