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From: Hongseok Yang <hyang@cs.uiuc.edu>
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Subject: Pullback perserving functor
Date: Thu, 28 Jan 1999 23:13:03 -0600 (CST)
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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