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