From: Justin Pearson <justin@DoCS.UU.SE>
To: categories@mta.ca
Subject: Re: RFN (Request for Notation)
Date: Mon, 27 Nov 2000 17:39:48 +0100 [thread overview]
Message-ID: <14882.36436.792098.783391@vivien.it.uu.se> (raw)
In-Reply-To: <200011262125.NAA22532@kamiak.eecs.wsu.edu>
David B. Benson wrote:
> Dear Colleagues,
>
> I am preparing notes for a sophomore (second year)
> course, and I am finding several places wherein
> I can find no standard notation. Your suggestions
> will be most appreciated.
>
>
> (2) I need a snappy name for an order pair in
> a relation R. The books I have seem to just
> say ``...the ordered pair (x,y) in relation R...''
Depends what you want to talk about. If you want to talk about R as
simple a set then I would normally refer to an
element of R a tuple of R where the context tells you that
the tuple is of length two.
Regards
Justin
next prev parent reply other threads:[~2000-11-27 16:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-11-26 21:25 David B. Benson
2000-11-27 16:39 ` Justin Pearson [this message]
[not found] <200011271710.RAA07285@bruno.dcs.qmw.ac.uk>
2000-11-29 23:02 ` Paul Levy
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