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src/HOL/ex/Puzzle.thy
author nipkow
Thu, 10 May 2001 17:28:40 +0200
changeset 11295 66925f23ac7f
parent 8018 bedd0beabbae
child 13116 baabb0fd2ccf
permissions -rw-r--r--
improved tracing of permutative rules.

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

A question from "Bundeswettbewerb Mathematik"
*)

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