--- a/src/HOL/Isar_examples/Hoare.thy Fri Nov 17 02:19:55 2006 +0100
+++ b/src/HOL/Isar_examples/Hoare.thy Fri Nov 17 02:20:03 2006 +0100
@@ -32,7 +32,7 @@
| While "'a bexp" "'a assn" "'a com"
abbreviation
- Skip ("SKIP")
+ Skip ("SKIP") where
"SKIP == Basic id"
types