sequence multiplied by -1

Seebs usenet-nospam at seebs.net
Wed Sep 29 19:25:03 CEST 2010


On 2010-09-29, Lawrence D'Oliveiro <ldo at geek-central.gen.new_zealand> wrote:
> In message <slrni9u4kv.28r0.usenet-nospam at guild.seebs.net>, Seebs wrote:
>> Helps, perhaps, that I got exposed to group theory early enough to be used
>> to redefining + and * to be any two operations which have interesting
>> properties ...

> But groups only have one such operation; it???s rings and fields (and number 
> systems) that have two.

They're covered in the same class, therefore, they're part of the same
field (of study, that is).  :P

-s
-- 
Copyright 2010, all wrongs reversed.  Peter Seebach / usenet-nospam at seebs.net
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