Re: Re: finite domains

*To*: mathgroup at smc.vnet.net*Subject*: [mg53046] Re: [mg53028] Re: finite domains*From*: János <janos.lobb at yale.edu>*Date*: Tue, 21 Dec 2004 05:19:30 -0500 (EST)*References*: <cp3t2v$9ai$1@smc.vnet.net> <200412201134.GAA02658@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Paul, I looked at the article and I understand that for that particular case. However that case fell back in the definition on an already existing infinite domain of the same order namely Z. There is also a similar definition in the Book for Odd numbers. In my case I cannot fall back on an existing finite domain, or I do not know how to explore/exploite it with Boolean. I am thinking of a domain named Irany having elements {North,East,South,West}. How can I do that without a reference to a more basic domain as foundation and expect that Element[NorthWest,Irany] will give me False? Thanks ahead, János On Dec 20, 2004, at 6:34 AM, Paul Abbott wrote: > In article <cp3t2v$9ai$1 at smc.vnet.net>, János <janos.lobb at yale.edu> > wrote: > > >> When I look the book I see just infinite built-in domains, like >> Integer etc... I am wondering if finite domains can be created and if >> all the domain related functions would work on it. As an example, I >> have {North, West, South, East} in mind. >> > To add a domain see The Mathematica Journal 7(4): 450-451. > > Cheers, > Paul > > -- Paul Abbott Phone: +61 8 6488 2734 > School of Physics, M013 Fax: +61 8 6488 1014 > The University of Western Australia (CRICOS Provider No 00126G) 35 > Stirling Highway > Crawley WA 6009 mailto:paul at physics.uwa.edu.au AUSTRALIA > http://physics.uwa.edu.au/~paul > ---------------------------------------------- Trying to argue with a politician is like lifting up the head of a corpse. (S. Lem: His Master Voice)

**References**:**Re: finite domains***From:*Paul Abbott <paul@physics.uwa.edu.au>