diff options
author | Enrico Tassi <gareuselesinge@debian.org> | 2015-01-25 14:42:51 +0100 |
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committer | Enrico Tassi <gareuselesinge@debian.org> | 2015-01-25 14:42:51 +0100 |
commit | 7cfc4e5146be5666419451bdd516f1f3f264d24a (patch) | |
tree | e4197645da03dc3c7cc84e434cc31d0a0cca7056 /test-suite/bugs/closed/1643.v | |
parent | 420f78b2caeaaddc6fe484565b2d0e49c66888e5 (diff) |
Imported Upstream version 8.5~beta1+dfsg
Diffstat (limited to 'test-suite/bugs/closed/1643.v')
-rw-r--r-- | test-suite/bugs/closed/1643.v | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/1643.v b/test-suite/bugs/closed/1643.v new file mode 100644 index 00000000..879a65b1 --- /dev/null +++ b/test-suite/bugs/closed/1643.v @@ -0,0 +1,20 @@ +(* 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. + 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. |