src/HOL/AxClasses/Product.thy
author wenzelm
Sat, 01 Dec 2001 18:52:32 +0100
changeset 12338 de0f4a63baa5
parent 10681 ec76e17f73c5
child 14981 e73f8140af78
permissions -rw-r--r--
renamed class "term" to "type" (actually "HOL.type");

(*  Title:      HOL/AxClasses/Product.thy
    ID:         $Id$
    Author:     Markus Wenzel, TU Muenchen
    License:    GPL (GNU GENERAL PUBLIC LICENSE)
*)

theory Product = Main:

axclass product < type

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


instance bool :: product
  by intro_classes

defs (overloaded)
  product_bool_def: "x [*] y == x & y"

end