
diff -r f04b33ce250f -r a4dc62a46ee4 ex/Puzzle.thy
--- a/ex/Puzzle.thy	Tue Oct 24 14:59:17 1995 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,12 +0,0 @@
-(*  Title: 	HOL/ex/puzzle.thy
-    ID:         $Id$
-    Author: 	Tobias Nipkow
-    Copyright   1993 TU Muenchen
-
-An question from "Bundeswettbewerb Mathematik"
-*)
-
-Puzzle = Nat +
-consts f :: "nat => nat"
-rules  f_ax "f(f(n)) < f(Suc(n))"
-end




