From: David Roberts <droberts@maths.adelaide.edu.au>
To: categories@mta.ca
Subject: comma objects
Date: Wed, 2 Mar 2011 09:35:50 +1030 [thread overview]
Message-ID: <E1PuaME-0005SL-Sm@mlist.mta.ca> (raw)
Hi all,
when were (lax) comma objects in a 2-category introduced, and by whom?
By lax comma object I mean the thing described here:
http://ncatlab.org/nlab/show/comma+object, where \alpha is not
necessarily invertible.
Thanks,
David
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reply other threads:[~2011-03-01 23:05 UTC|newest]
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