diff -r 32d1795cc77a -r 1badf63e5d97 src/HOL/Probability/Probability.thy
--- a/src/HOL/Probability/Probability.thy	Thu Nov 15 11:16:58 2012 +0100
+++ b/src/HOL/Probability/Probability.thy	Thu Nov 15 15:50:01 2012 +0100
@@ -1,5 +1,6 @@
 theory Probability
 imports
+  Discrete_Topology
   Complete_Measure
   Probability_Measure
   Infinite_Product_Measure