diff -r 6db76c88907a -r 66c8281349ec src/HOL/Probability/Product_Measure.thy
--- a/src/HOL/Probability/Product_Measure.thy	Tue Mar 22 18:53:05 2011 +0100
+++ b/src/HOL/Probability/Product_Measure.thy	Tue Mar 22 20:06:10 2011 +0100
@@ -1,3 +1,9 @@
+(*  Title:      HOL/Probability/Product_Measure.thy
+    Author:     Johannes Hölzl, TU München
+*)
+
+header {*Product measure spaces*}
+
 theory Product_Measure
 imports Lebesgue_Integration
 begin