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| author |  letouzey <letouzey@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2007-03-12 17:11:32 +0000 |
|---|---|---|
| committer | letouzey <letouzey@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2007-03-12 17:11:32 +0000 |
| commit | 0b05b8de1bcb0716e1c6b19d265027da36b1c3cc (patch) | |
| tree | 84f06b33a5b0d9c24b0092b77dc88a5bced78f7e /theories/Arith/Peano_dec.v | |
| parent | ba7728cc8dce5034937d208ab13c847d1ec24db8 (diff) | |
Proof simplification for eq_nat_dec et le_lt_dec: induction over
2nd arg m can simply be a destruct. This helps (vm_)compute __a lot__.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9698 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'theories/Arith/Peano_dec.v')
| -rw-r--r-- | theories/Arith/Peano_dec.v | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/theories/Arith/Peano_dec.v b/theories/Arith/Peano_dec.v index 5a9e98073..42335f98b 100644 --- a/theories/Arith/Peano_dec.v +++ b/theories/Arith/Peano_dec.v @@ -23,7 +23,7 @@ Defined. Theorem eq_nat_dec : forall n m, {n = m} + {n <> m}. Proof. - induction n; induction m; auto. + induction n; destruct m; auto. elim (IHn m); auto. Defined. |