diff options
author | Samuel Mimram <smimram@debian.org> | 2008-07-25 15:12:53 +0200 |
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committer | Samuel Mimram <smimram@debian.org> | 2008-07-25 15:12:53 +0200 |
commit | a0cfa4f118023d35b767a999d5a2ac4b082857b4 (patch) | |
tree | dabcac548e299fee1da464c93b3dba98484f45b1 /test-suite/bugs/closed/shouldsucceed/1643.v | |
parent | 2281410e38ef99d025ea77194585a9bc019fdaa9 (diff) |
Imported Upstream version 8.2~beta3+dfsgupstream/8.2.beta3+dfsg
Diffstat (limited to 'test-suite/bugs/closed/shouldsucceed/1643.v')
-rw-r--r-- | test-suite/bugs/closed/shouldsucceed/1643.v | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/shouldsucceed/1643.v b/test-suite/bugs/closed/shouldsucceed/1643.v new file mode 100644 index 00000000..4114987d --- /dev/null +++ b/test-suite/bugs/closed/shouldsucceed/1643.v @@ -0,0 +1,21 @@ +(* Check some aspects of that the algorithm used to possibly reuse a + global name in the recursive calls (coinductive case) *) + +CoInductive Str : Set := Cons (h:nat) (t:Str). + +Definition decomp_func (s:Str) := + match s with + | Cons h t => Cons h t + end. + +Theorem decomp s: s = decomp_func s. +Proof. + intros s. + case s; simpl; reflexivity. +Qed. + +Definition zeros := (cofix z : Str := Cons 0 z). +Lemma zeros_rw : zeros = Cons 0 zeros. + rewrite (decomp zeros). + simpl. +Admitted. |