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src/HOL/ex/Puzzle.thy
author paulson
Mon, 14 Aug 1995 13:42:27 +0200
changeset 1228 7d6b0241afab
parent 969 b051e2fc2e34
child 1376 92f83b9d17e1
permissions -rw-r--r--
updated version number to revision 4
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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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An question from "Bundeswettbewerb Mathematik"













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*)













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Puzzle = Nat +













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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















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