--- a/src/HOL/Probability/Borel.thy Mon Jun 28 15:03:07 2010 +0200
+++ b/src/HOL/Probability/Borel.thy Mon Jun 28 15:03:07 2010 +0200
@@ -203,7 +203,7 @@
by (metis surj_def)
from Fract i j n show ?thesis
- by (metis prod.cases prod_case_split)
+ by (metis prod.cases)
qed
qed