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src/HOL/ex/Puzzle.thy
author wenzelm
Fri, 31 Jul 1998 11:03:31 +0200
changeset 5228 66925577cefe
parent 2222 a3fb552f10e3
child 8018 bedd0beabbae
permissions -rw-r--r--
isatool expandshort;

(*  Title:      HOL/ex/Puzzle.thy
    ID:         $Id$
    Author:     Tobias Nipkow
    Copyright   1993 TU Muenchen

A question from "Bundeswettbewerb Mathematik"
*)

Puzzle = Nat +
consts f :: nat => nat
rules  f_ax "f(f(n)) < f(Suc(n))"
end
isabelle