| author | wenzelm |
| Sat, 02 May 1998 13:27:06 +0200 | |
| changeset 4886 | 31f23b8d6851 |
| parent 2281 | e00c13a29eda |
| permissions | -rw-r--r-- |
(* Title: HOL/Integ/IntRingDefs.thy ID: $Id$ Author: Tobias Nipkow and Markus Wenzel Copyright 1996 TU Muenchen Provides the basic defs and thms for showing that int is a commutative ring. Most of it has been defined and shown already. *) IntRingDefs = Integ + Ring + instance int :: zero defs zero_int_def "zero::int == $# 0" end