diff options
| author |  pboutill <pboutill@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2010-12-10 13:22:29 +0000 |
|---|---|---|
| committer | pboutill <pboutill@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2010-12-10 13:22:29 +0000 |
| commit | 05085e80668a4d1dedc522c6af343168870cc648 (patch) | |
| tree | 084048fdff9f8d460e75ece78d5297b583d952f4 /theories/ZArith/Zdigits.v | |
| parent | d52641d2cda2af132c13dcb481f753d51e7af216 (diff) | |
First release of Vector library.
To avoid names¬ations clashs with list, Vector shouldn't be
"Import"ed but one can "Import Vector.VectorNotations." to have
notations.
SetoidVector at least remains to do.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13702 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'theories/ZArith/Zdigits.v')
| -rw-r--r-- | theories/ZArith/Zdigits.v | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/theories/ZArith/Zdigits.v b/theories/ZArith/Zdigits.v index 6d8a237e5..ff1d96df4 100644 --- a/theories/ZArith/Zdigits.v +++ b/theories/ZArith/Zdigits.v @@ -45,17 +45,17 @@ Section VALUE_OF_BOOLEAN_VECTORS. exact 0%Z. inversion H0. - exact (bit_value a + 2 * H H2)%Z. + exact (bit_value h + 2 * H H2)%Z. Defined. Lemma two_compl_value : forall n:nat, Bvector (S n) -> Z. Proof. simple induction n; intros. inversion H. - exact (- bit_value a)%Z. + exact (- bit_value h)%Z. inversion H0. - exact (bit_value a + 2 * H H2)%Z. + exact (bit_value h + 2 * H H2)%Z. Defined. End VALUE_OF_BOOLEAN_VECTORS. @@ -134,7 +134,7 @@ Section Z_BRIC_A_BRAC. Lemma binary_value_Sn : forall (n:nat) (b:bool) (bv:Bvector n), - binary_value (S n) (Vcons bool b n bv) = + binary_value (S n) ( b :: bv) = (bit_value b + 2 * binary_value n bv)%Z. Proof. intros; auto. |