From 9bafbd1b551c9cf8d7c3a7fb96511966ed094831 Mon Sep 17 00:00:00 2001
From: Makarius Wenzel
Date: Fri, 16 Apr 1999 16:15:27 +0000
Subject: initial version of 'isar proof assistant (Isabelle/Isar);

---
 isar/Example.thy | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 isar/Example.thy

(limited to 'isar/Example.thy')

diff --git a/isar/Example.thy b/isar/Example.thy
new file mode 100644
index 00000000..b8b7328b
--- /dev/null
+++ b/isar/Example.thy
@@ -0,0 +1,12 @@
+
+theory Example = Main:;
+
+lemma "A --> B --> A";
+proof;
+  assume A;
+  show "B --> A";
+  proof;
+  qed;
+qed;
+
+end;
-- 
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