From: categories <cat-dist@mta.ca>
To: categories <categories@mta.ca>
Subject: correction
Date: Thu, 15 May 1997 22:19:35 -0300 (ADT) [thread overview]
Message-ID: <Pine.OSF.3.90.970515221927.26627M-100000@mailserv.mta.ca> (raw)
Date: Thu, 15 May 1997 10:12:30 +0200 (MET DST)
From: Jiri Rosicky <rosicky@math.muni.cz>
At the 64th PSSL at Braunschweig, I gave a talk about cartesian closedness
of exact completions with an intention to cover equilogical spaces in the
sense of Dana Scott (see D.S.Scott, A New category? Domains, Spaces and
Equivalence Relations, preprint 1996). Unfortunately, Peter Johnstone
found a flaw in my argument. I would like to announce the following result
which covers equilogical spaces:
Theorem: Let C be an infinitary extensive category. Then its exact
completion ex(C) is cartesian closed iff C is weakly cartesian closed.
Moreover, the embedding C-->ex(C) preserves exponentials.
next reply other threads:[~1997-05-16 1:19 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-05-16 1:19 categories [this message]
1998-02-15 18:05 correction Paul Taylor
2000-10-10 15:52 correction Michael MAKKAI
2001-05-30 15:01 correction Marta Bunge
2003-04-28 16:12 correction Peter Freyd
2006-01-12 14:56 Correction Peter May
2009-11-17 15:18 correction Michael Barr
2013-04-26 15:40 correction Eduardo J. Dubuc
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