--- a/src/HOL/Induct/ABexp.thy Fri Jun 17 11:35:35 2005 +0200
+++ b/src/HOL/Induct/ABexp.thy Fri Jun 17 16:12:49 2005 +0200
@@ -5,7 +5,7 @@
header {* Arithmetic and boolean expressions *}
-theory ABexp = Main:
+theory ABexp imports Main begin
datatype 'a aexp =
IF "'a bexp" "'a aexp" "'a aexp"