src/HOL/ex/Puzzle.thy
author nipkow
Tue Nov 26 14:26:38 1996 +0100 (1996-11-26)
changeset 2222 a3fb552f10e3
parent 1476 608483c2122a
child 8018 bedd0beabbae
permissions -rw-r--r--
Added Lagrang. Modified comment.
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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 = 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