--- a/ProgTutorial/Tactical.thy Sat Apr 24 22:55:50 2010 +0200
+++ b/ProgTutorial/Tactical.thy Mon Apr 26 05:20:01 2010 +0200
@@ -365,16 +365,15 @@
where
"EQ_TRUE X \<equiv> (X = True)"
-lemma test:
+schematic_lemma test:
shows "EQ_TRUE ?X"
unfolding EQ_TRUE_def
by (rule refl)
text {*
- Although Isabelle issues a warning message when stating goals involving
- meta-variables, it is possible to prove this theorem. The reason for the warning
- message is that the proved theorem is not @{text "EQ_TRUE ?X"}, as one might
- expect, but @{thm test}. We can test this with:
+ By using \isacommand{schematic\_lemma} it is possible to prove lemmas including
+ meta-variables on the user level. However, the proved theorem is not @{text "EQ_TRUE ?X"},
+ as one might expect, but @{thm test}. We can test this with:
\begin{isabelle}
\isacommand{thm}~@{thm [source] test}\\
@@ -391,6 +390,7 @@
*}
+
section {* Simple Tactics\label{sec:simpletacs} *}
text {*
@@ -568,7 +568,7 @@
\end{figure}
*}
-lemma
+schematic_lemma
shows "\<And>x y. A x y \<Longrightarrow> B y x \<longrightarrow> C (?z y) x"
apply(tactic {* Subgoal.FOCUS foc_tac @{context} 1 *})