From: Mikael Vejdemo Johansson <mik@math.su.se>
To: Categories list <categories@mta.ca>
Subject: Re: Help!
Date: Mon, 8 Oct 2007 07:10:36 +0200 (CEST) [thread overview]
Message-ID: <E1IesRx-0004Ii-03@mailserv.mta.ca> (raw)
On Fri, 5 Oct 2007, Michael Barr wrote:
> What would you say to an undergraduate math club about categories? I have
> been thinking about it, but I am not sure what to say. Talk about
> cohomology, which is what motivated E-M? I don't think so. Talk about
> dual spaces of finite-dimensional vector spaces? Maybe, but then what?
>
How about talking about simultaneously existing results in several
categories? The Noetherian isomorphism theorems, while not necessarily the
easiest to nail down exactly when they hold, have always been a strong
motivator at the back of my head for why one might want to look at
algebraic entities codifying things like "All Xs and maps between them".
--
Mikael Vejdemo Johansson | To see the world in a grain of sand
mik@math.su.se | And heaven in a wild flower
| To hold infinity in the palm of your hand
| And eternity for an hour
next reply other threads:[~2007-10-08 5:10 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-08 5:10 Mikael Vejdemo Johansson [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-10-09 22:33 Help! Ross Street
2007-10-09 4:41 Help! Saul Youssef
2007-10-08 18:48 Help! Toby Bartels
2007-10-08 15:43 Help! Vaughan Pratt
2007-10-08 14:34 Help! Patrik Eklund
2007-10-07 23:20 Help! Vaughan Pratt
2007-10-07 17:11 Help! Toby Bartels
2007-10-07 16:16 Help! Vaughan Pratt
2007-10-07 14:43 Help! Michael Barr
2007-10-07 10:22 Help! Marta Bunge
2007-10-07 9:23 Help! Ronnie Brown
2007-10-07 8:09 Help! George Janelidze
2007-10-05 12:52 Help! Michael Barr
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