author | huffman |
Wed, 18 Feb 2009 15:01:53 -0800 | |
changeset 29981 | 7d0ed261b712 |
parent 16417 | 9bc16273c2d4 |
permissions | -rw-r--r-- |
(* Title: HOL/AxClasses/Product.thy ID: $Id$ Author: Markus Wenzel, TU Muenchen *) theory Product imports Main begin 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