diff -r af364e2b4048 -r f2965bf954dc src/LCF/ex/ROOT.ML
--- a/src/LCF/ex/ROOT.ML	Tue Jul 31 22:21:22 2007 +0200
+++ b/src/LCF/ex/ROOT.ML	Tue Jul 31 23:23:28 2007 +0200
@@ -6,7 +6,4 @@
 Some examples from Lawrence Paulson's book Logic and Computation.
 *)
 
-time_use_thy "Ex1";
-time_use_thy "Ex2";
-time_use_thy "Ex3";
-time_use_thy "Ex4";
+use_thys ["Ex1", "Ex2", "Ex3", "Ex4"];