RE: McLaren on Group Theory, etc.

>> The integers modulo N do form a group under addition,
>
> Hmmm... They are certainly closed over addition, and there certainly
>seem to be identity and inverse elements. But I can't recall what else is
>required for them to constitute a group.

The only other criterion is associativity.

Gordon Collins


Received: from ns.ezh.nl [137.174.112.59] by vbv40.ezh.nl
with SMTP-OpenVMS via TCP/IP; Fri, 13 Dec 1996 22:02 +0100
Received: by ns.ezh.nl; (5.65v3.2/1.3/10May95) id AA03728; Fri, 13 Dec 1996 22:04:55 +0100
Received: from eartha.mills.edu by ns (smtpxd); id XA03726
Received: from by eartha.mills.edu via SMTP (940816.SGI.8.6.9/930416.SGI)
for id NAA17975; Fri, 13 Dec 1996 13:04:53 -0800
Date: Fri, 13 Dec 1996 13:04:53 -0800
Message-Id:
Errors-To: madole@ella.mills.edu
Reply-To: tuning@eartha.mills.edu
Originator: tuning@eartha.mills.edu
Sender: tuning@eartha.mills.edu