diff options
| author |  David Aspinall <da@inf.ed.ac.uk> | 2002-06-18 23:02:15 +0000 |
|---|---|---|
| committer | David Aspinall <da@inf.ed.ac.uk> | 2002-06-18 23:02:15 +0000 |
| commit | 9e751e825b3e830f3fcc81374e853b741e38bd79 (patch) | |
| tree | b61883fd48e9dedbc82e5e2257623a50097a56eb /etc/coq | |
| parent | a28fbacc11bd18ee171a58cc029ae976de59c501 (diff) | |
Added some non-undoable tactics
Diffstat (limited to 'etc/coq')
| -rw-r--r-- | etc/coq/nested.v | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/etc/coq/nested.v b/etc/coq/nested.v index 8c2a0f9d..53a84c10 100644 --- a/etc/coq/nested.v +++ b/etc/coq/nested.v @@ -56,7 +56,8 @@ EAuto. (* 6 "Undo" *) Definition foo:=O. (* 6.5 between 6 and 7 *) Require Omega. (* 7 This needs "Back 1" to be retracted. *) Lemma t2 : O=O. (* 7a. -> 6: "Abort. Back 1. Undo 1." *) - Auto. + Auto. + Print f. (* a non-undoable "tactic" *) Lemma t4 : O=O. Auto. (* 7b. -> 6: "Abort. [Undo.] Abort. Back 1. Undo 1." *) (* 7b. -> 2: "Abort. Abort. Abort. Back 1." @@ -65,6 +66,7 @@ Require Omega. (* 7 This needs "Back 1" to be retracted. *) top-level proof and within top-level proof. *) Save. Save. (* 8 "Back 1" or "Reset t2". *) + Proof. (* another non-undoable... *) Intros. (* 9 "Undo": example of retraction 9->6: Undo 2. Back 3. *) Fixpoint g [n:nat] : nat := Cases n of O => O | (S m)=> (g m) end. (*7*) Lemma t3 : O=O. Auto. Save. (* 10 "Back 1" or "Reset t3" *) |