src/HOL/Library/Char_nat.thy

--- a/src/HOL/Library/Char_nat.thy	Fri Jul 04 16:33:08 2008 +0200
+++ b/src/HOL/Library/Char_nat.thy	Mon Jul 07 08:47:17 2008 +0200
@@ -6,7 +6,7 @@
 header {* Mapping between characters and natural numbers *}
 
 theory Char_nat
-imports Plain List
+imports Plain "~~/src/HOL/List"
 begin
 
 text {* Conversions between nibbles and natural numbers in [0..15]. *}