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src/HOL/AxClasses/Product.thy
author obua
Sun, 09 May 2004 23:04:36 +0200
changeset 14722 8e739a6eaf11
parent 12338 de0f4a63baa5
child 14981 e73f8140af78
permissions -rw-r--r--
replaced apply-style proof for instance Multiset :: plus_ac0 by recommended Isar proof style
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(*  Title:      HOL/AxClasses/Product.thy
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    ID:         $Id$
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    Author:     Markus Wenzel, TU Muenchen
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    License:    GPL (GNU GENERAL PUBLIC LICENSE)
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*)
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theory Product = Main:













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axclass product < type








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consts













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  product :: "'a::product => 'a => 'a"    (infixl "[*]" 70)













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instance bool :: product













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  by intro_classes













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defs (overloaded)













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  product_bool_def: "x [*] y == x & y"













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end















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