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From: "Paul Taylor" <pt12@PaulTaylor.EU>
To: categories@mta.ca
Subject: regular monos of groups
Date: Fri, 22 Jun 2012 08:19:05 +0100	[thread overview]
Message-ID: <E1Si0tQ-0004Zw-Is@mlist.mta.ca> (raw)
In-Reply-To: <E1ShkbY-000143-KJ@mlist.mta.ca>

Mike Barr said

> Somewhere I have seen a proof that all monics in the category of groups
> are regular.

Somebody asked this question a while back on MathOverflow
and I gave the following proof, which is both constructive and
more explicit than the replies that have been given here.

http://mathoverflow.net/questions/41208/are-all-group-monomorphisms-regular-constructively/46054#46054

Paul Taylor



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  parent reply	other threads:[~2012-06-22  7:19 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-21 13:34 Two questions Michael Barr
2012-06-21 17:07 ` Ronnie Brown
2012-06-21 23:32 ` George Janelidze
     [not found] ` <E1ShqME-0001Sf-JM@mlist.mta.ca>
2012-06-22  0:25   ` Peter LeFanu Lumsdaine
2012-06-22  7:19 ` Paul Taylor [this message]
2012-07-15 21:27   ` regular monos of groups Andrej Bauer

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