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| author |  Samuel Mimram <smimram@debian.org> | 2007-02-13 13:48:12 +0000 |
|---|---|---|
| committer | Samuel Mimram <smimram@debian.org> | 2007-02-13 13:48:12 +0000 |
| commit | 55ce117e8083477593cf1ff2e51a3641c7973830 (patch) | |
| tree | a82defb4105f175c71b0d13cae42831ce608c4d6 /contrib/setoid_ring/Ring.v | |
| parent | 208a0f7bfa5249f9795e6e225f309cbe715c0fad (diff) | |
Imported Upstream version 8.1+dfsgupstream/8.1+dfsg
Diffstat (limited to 'contrib/setoid_ring/Ring.v')
| -rw-r--r-- | contrib/setoid_ring/Ring.v | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/contrib/setoid_ring/Ring.v b/contrib/setoid_ring/Ring.v index 167e026f..1a4e1cc7 100644 --- a/contrib/setoid_ring/Ring.v +++ b/contrib/setoid_ring/Ring.v @@ -9,6 +9,7 @@ Require Import Bool. Require Export Ring_theory. Require Export Ring_base. +Require Export InitialRing. Require Export Ring_tac. Lemma BoolTheory : @@ -25,7 +26,7 @@ reflexivity. destruct x; reflexivity. Qed. -Unboxed Definition bool_eq (b1 b2:bool) := +Definition bool_eq (b1 b2:bool) := if b1 then b2 else negb b2. Lemma bool_eq_ok : forall b1 b2, bool_eq b1 b2 = true -> b1 = b2. |