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From: Jiri Adamek <adamek@iti.cs.tu-bs.de>
To: categories net <categories@mta.ca>
Subject: A question about extensive categories
Date: Wed, 29 Nov 2006 15:58:12 +0100 (CET)	[thread overview]
Message-ID: <E1GpV54-0002YR-NP@mailserv.mta.ca> (raw)

Dear colleagues,

Does anyone know whether every extensive and locally finitely presentable
category fulfils the following condition:

For every omega op-chain of coproduct injections i_n: A_n+1 -> A_n
with all A_n finitely presentable some i_n is an isomorphism.

We need this for investigating iterative monads in such categories,
and we have not managed to prove it, nor to find a counterexample.

Thanks,
Jiri Adamek, Stefan Milius and Jiri Velebil

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             reply	other threads:[~2006-11-29 14:58 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-11-29 14:58 Jiri Adamek [this message]
2006-12-14  9:29 reinhard.boerger

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