diff options
Diffstat (limited to 'etc/coq/nested.v')
| -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" *) |