src/HOL/ex/Puzzle.thy
changeset 969 b051e2fc2e34
child 1376 92f83b9d17e1
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/HOL/ex/Puzzle.thy	Wed Mar 22 12:42:34 1995 +0100
     1.3 @@ -0,0 +1,12 @@
     1.4 +(*  Title: 	HOL/ex/puzzle.thy
     1.5 +    ID:         $Id$
     1.6 +    Author: 	Tobias Nipkow
     1.7 +    Copyright   1993 TU Muenchen
     1.8 +
     1.9 +An question from "Bundeswettbewerb Mathematik"
    1.10 +*)
    1.11 +
    1.12 +Puzzle = Nat +
    1.13 +consts f :: "nat => nat"
    1.14 +rules  f_ax "f(f(n)) < f(Suc(n))"
    1.15 +end