--- a/tphols-2011/ROOT.ML	Wed Jan 26 22:51:51 2011 +0000
+++ b/tphols-2011/ROOT.ML	Wed Jan 26 22:58:24 2011 +0000
@@ -2,4 +2,7 @@
   no_document use_thys ["This_Theory1", "This_Theory2"];
   use_thys ["That_Theory1", "That_Theory2", "That_Theory3"];
 *)
-  use_thys ["../Prefix_subtract", "../Myhill"];
+        
+no_document use_thys ["../Prefix_subtract"];
+
+use_thys ["../Myhill"];