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src/HOL/ex/Puzzle.ML
changeset 1465 5d7a7e439cec
parent 1266 3ae9fe3c0f68
child 1673 d22110ddd0af
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1464:a608f83e3421 1465:5d7a7e439cec 
     1 (*  Title: 	HOL/ex/puzzle.ML
 
     1 (*  Title:      HOL/ex/puzzle.ML
 
     2     ID:         $Id$
 
     2     ID:         $Id$
 
     3     Author: 	Tobias Nipkow
 
     3     Author:     Tobias Nipkow
 
     4     Copyright   1993 TU Muenchen
 
     4     Copyright   1993 TU Muenchen
 
     5 
     5 
     6 For puzzle.thy.  A question from "Bundeswettbewerb Mathematik"
 
     6 For puzzle.thy.  A question from "Bundeswettbewerb Mathematik"
 
     7 
     7 
     8 Proof due to Herbert Ehler
 
     8 Proof due to Herbert Ehler
isabelle