--- a/src/HOL/Library/ROOT.ML	Fri Mar 30 17:25:34 2012 +0200
+++ b/src/HOL/Library/ROOT.ML	Fri Mar 30 18:56:02 2012 +0200
@@ -1,7 +1,7 @@
 
 (* Classical Higher-order Logic -- batteries included *)
 
-use_thys ["Library", "List_Cset", "List_Prefix", "List_lexord", "Sublist_Order",
+use_thys ["Library", "List_Prefix", "List_lexord", "Sublist_Order",
   "Product_Lattice",
   "Code_Char_chr", "Code_Char_ord", "Code_Integer", "Efficient_Nat"(*, "Code_Prolog"*),
   "Code_Real_Approx_By_Float", "Target_Numeral"];