From: Aleks Kissinger <aleks0@gmail.com>
To: David Leduc <david.leduc6@googlemail.com>
Cc: categories <categories@mta.ca>
Subject: Re: Dual category and dual object
Date: Sat, 4 Sep 2010 14:41:24 -0500 [thread overview]
Message-ID: <E1Os30W-0006ii-72@mlist.mta.ca> (raw)
In-Reply-To: <E1Orti5-0000CK-V0@mlist.mta.ca>
In the (bi)category Prof of categories and profunctors, the dual of an
object is the dual category. Profunctors most certainly came later
than the notions of categorical dual and dual objects (or at least
their concrete counterparts, dual spaces), so this might just be a
happy coincidence.
Aleks
On Sat, Sep 4, 2010 at 5:46 AM, David Leduc <david.leduc6@googlemail.com> wrote:
> Are the notions of dual category and dual object related?
> If not, are there any good reasons to use the word "dual" for both notions?
>
>
[For admin and other information see: http://www.mta.ca/~cat-dist/ ]
next prev parent reply other threads:[~2010-09-04 19:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-04 10:46 David Leduc
2010-09-04 14:46 ` Michael Barr
2010-09-04 16:38 ` Toby Bartels
2010-09-05 0:47 ` Michael Barr
[not found] ` <Pine.LNX.4.64.1009042045000.20602@msr03.math.mcgill.ca>
2010-09-05 0:54 ` Toby Bartels
2010-09-04 19:41 ` Aleks Kissinger [this message]
[not found] ` <3E056346-48EE-4D5C-A2FD-8008A722583A@mq.edu.au>
2010-09-05 1:50 ` David Leduc
[not found] ` <AANLkTikBACfX_x3DX2pUL6zSGc_5xYoz42q3Gbf3Hpby@mail.gmail.com>
2010-09-05 2:30 ` Aleks Kissinger
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