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ex/Puzzle.thy
author wenzelm
Wed, 14 Sep 1994 16:05:28 +0200
changeset 142 760641387b20
parent 0 7949f97df77a
permissions -rw-r--r--
replaced lookup_const by Sign.const_type;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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















Old_HOL