New ROOT file for nominal datatype examples.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/HOL/Nominal/Examples/ROOT.ML	Fri Apr 28 15:55:38 2006 +0200
@@ -0,0 +1,11 @@
+(*  Title:      HOL/Nominal/Examples/ROOT.ML
+    ID:         $Id$
+    Author:     Christian Urban, TU Muenchen
+
+Various examples involving nominal datatypes.
+*)
+
+use_thy "CR";
+use_thy "SN";
+use_thy "Recursion";
+use_thy "Weakening";