From: Vaughan Pratt <pratt@cs.stanford.edu>
To: categories list <categories@mta.ca>
Subject: Re: non-Hausdoff topology
Date: Wed, 07 Jul 2010 20:19:12 -0700 [thread overview]
Message-ID: <E1OXDZ0-0004AE-TN@mailserv.mta.ca> (raw)
On 7/7/2010 10:28 AM, Michael Barr wrote:
> Not just in CS, but also central to algebraic geometry: the Zariski
> topology is almost never hausdorff. But when topology is taught to
> undergraduates, it is usually for the purposes of analysis and I don't
> know if we could this point across.
My understanding of Paul's complaint was with the passage not so much
from T2 to T0 but from T1 to T0, needed for the Scott topology. The
Zariski topology is always T1.
Vaughan Pratt
[For admin and other information see: http://www.mta.ca/~cat-dist/ ]
next reply other threads:[~2010-07-08 3:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-08 3:19 Vaughan Pratt [this message]
2010-07-09 14:10 ` Steve Vickers
-- strict thread matches above, loose matches on Subject: below --
2010-07-07 8:31 Paul Taylor
2010-07-07 13:35 ` Vaughan Pratt
2010-07-08 16:45 ` Steven Vickers
2010-07-07 14:27 ` Robert J. MacG. Dawson
2010-07-07 14:40 ` Martin Escardo
2010-07-07 15:24 ` Jeff Egger
2010-07-07 16:12 ` Steve Vickers
2010-07-07 17:28 ` Michael Barr
2010-07-08 11:54 ` Erik Palmgren
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