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@ 2003-05-20 15:34 Peter Freyd
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From: Peter Freyd @ 2003-05-20 15:34 UTC (permalink / raw)
  To: categories

Peter Johnstone has pointed out to me that there is, of course, a much
easier example of a category in which projections from products
needn't be epi: the good ol' category of sets.

As they say, the empty set really does exist.





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2003-05-20 15:34 Yikes Peter Freyd

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