src/HOL/ex/Puzzle.thy
author paulson
Tue, 16 Jul 1996 15:49:46 +0200
changeset 1868 836950047d85
parent 1476 608483c2122a
child 2222 a3fb552f10e3
permissions -rw-r--r--
Put in minimal simpset to avoid excessive simplification, just as in revision 1.9 of HOL/indrule.ML

(*  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