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From: Hongseok Yang <hyang@cs.uiuc.edu>
To: categories@mta.ca
Subject: Pullback perserving functor
Date: Thu, 28 Jan 1999 23:13:03 -0600 (CST)	[thread overview]
Message-ID: <Pine.SOL.4.05.9901282302410.4923-100000@sal.cs.uiuc.edu> (raw)


Would someone let me know the answer and the proof or counter example of
the following question? 

Suppose the category C has a pullback for every pair of morphism 
(f : X -> Y, g : W -> Y). Let K be the full subcategory of the functor
category Func(C,Set) whose objects are pullback perserving functors.
Is K ccc? (If so, how I can show this?)

Thanks,
Hongseok




             reply	other threads:[~1999-01-29  5:13 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-01-29  5:13 Hongseok Yang [this message]
1999-01-29 14:51 ` F W Lawvere
1999-01-29 15:35 ` Pullback preserving functor Dr. P.T. Johnstone

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