diff options
author | 2015-01-25 14:43:16 +0100 | |
---|---|---|
committer | 2015-01-25 14:43:16 +0100 | |
commit | f219abfed720305c13875c3c63f9240cf63f78bc (patch) | |
tree | 69d2c026916128fdb50b8d1c0dbf1be451340d30 /test-suite/bugs/closed/1643.v | |
parent | 476d60ef0fe0ac015c1e902204cdd7029e10ef0f (diff) | |
parent | cec4741afacd2e80894232850eaf9f9c0e45d6d7 (diff) |
Merge tag 'upstream/8.5_beta1+dfsg'
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. |