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authorGravatar Stephane Glondu <steph@glondu.net>2010-07-21 09:46:51 +0200
committerGravatar Stephane Glondu <steph@glondu.net>2010-07-21 09:46:51 +0200
commit5b7eafd0f00a16d78f99a27f5c7d5a0de77dc7e6 (patch)
tree631ad791a7685edafeb1fb2e8faeedc8379318ae /theories/Arith/Div2.v
parentda178a880e3ace820b41d38b191d3785b82991f5 (diff)
Imported Upstream snapshot 8.3~beta0+13298
Diffstat (limited to 'theories/Arith/Div2.v')
-rw-r--r--theories/Arith/Div2.v6
1 files changed, 3 insertions, 3 deletions
diff --git a/theories/Arith/Div2.v b/theories/Arith/Div2.v
index 7cab976f..999a6454 100644
--- a/theories/Arith/Div2.v
+++ b/theories/Arith/Div2.v
@@ -6,7 +6,7 @@
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
-(*i $Id: Div2.v 11735 2009-01-02 17:22:31Z herbelin $ i*)
+(*i $Id$ i*)
Require Import Lt.
Require Import Plus.
@@ -36,7 +36,7 @@ Proof.
intros P H0 H1 Hn.
cut (forall n, P n /\ P (S n)).
intros H'n n. elim (H'n n). auto with arith.
-
+
induction n. auto with arith.
intros. elim IHn; auto with arith.
Qed.
@@ -150,7 +150,7 @@ Proof fun n => proj2 (proj2 (even_odd_double n)).
Hint Resolve even_double double_even odd_double double_odd: arith.
-(** Application:
+(** Application:
- if [n] is even then there is a [p] such that [n = 2p]
- if [n] is odd then there is a [p] such that [n = 2p+1]