--- a/src/HOL/MicroJava/BV/Opt.thy Fri Jun 17 11:35:35 2005 +0200
+++ b/src/HOL/MicroJava/BV/Opt.thy Fri Jun 17 16:12:49 2005 +0200
@@ -8,7 +8,7 @@
header {* \isaheader{More about Options} *}
-theory Opt = Err:
+theory Opt imports Err begin
constdefs
le :: "'a ord \<Rightarrow> 'a option ord"