src/HOL/ex/Puzzle.thy
author nipkow
Fri, 24 Nov 2000 16:49:27 +0100
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(*  Title:      HOL/ex/Puzzle.thy
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    ID:         $Id$
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    Author:     Tobias Nipkow
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    Copyright   1993 TU Muenchen
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A question from "Bundeswettbewerb Mathematik"
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*)
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Puzzle = Main +
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consts f :: nat => nat
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rules  f_ax "f(f(n)) < f(Suc(n))"
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end