--- a/src/HOL/Library/Parity.thy Mon Dec 10 11:24:08 2007 +0100
+++ b/src/HOL/Library/Parity.thy Mon Dec 10 11:24:09 2007 +0100
@@ -6,7 +6,7 @@
header {* Even and Odd for int and nat *}
theory Parity
-imports Main
+imports PreList
begin
class even_odd = type +