From: Andrei.Prokopiw@Dartmouth.EDU (Andrei Prokopiw)
To: categories@mta.ca
Subject: first isomorphism theorem
Date: 18 Jun 2003 13:39:10 EDT [thread overview]
Message-ID: <13560194@newdancer.Dartmouth.EDU> (raw)
Is there a suitable first isomorphism theorem in category theoretic language? One barrier for me seems to be the correct notion of an image. What seems best right now would be that given f:X->Y, ker(coker f) = coker ( ker f). Here the left hand side would represent im f, and the right hand side X/kerf. If this is the right notion, what are the necessary conditions on the category for it to hold?
-Andrei Prokopiw
next reply other threads:[~2003-06-18 17:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-18 17:39 Andrei Prokopiw [this message]
2003-06-19 7:59 ` Toby Bartels
2003-06-19 12:52 ` Michael Barr
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