Dear All A minor comment: The correct plural form of "topos" is "topoi", as the plural form of "logos" is "logoi". I vaguely remember that the plural form of "topos" was already discussed on this board. In ancient Greek, "(ho) topos" is a noun. Here is a citation: "Ton de hyperouranion topon ..." (Plato, Phaidros, Bibliotheca Oxoniensis, Tomus II, 247 c). This citation shows that "topos" is a noun. Likewise, in algebraic geometry, it is common to use "zero loci" as the plural form of "zero locus". Johannes HUEBSCHMANN Johannes Professeur ?m?rite USTL, UFR de Math?matiques UMR 8524 Laboratoire Paul Painlev? 59 655 VILLENEUVE d'ASCQ Cedex/France http://math.univ-lille1.fr/~huebschm TEL. (33) 3 20 43 41 97 (33) 3 20 43 42 33 (s?cr?tariat) (33) 3 20 43 48 50 (s?cr?tariat) Fax (33) 3 20 43 43 02 Johannes.Huebschmann@math.univ-lille1.fr Date: Wed, 09 Nov 2016 17:53:24 +0200 From: Patrik Eklund <peklund@cs.umu.se> To: Marta Bunge <martabunge@hotmail.com> Cc: categories@mta.ca, wlawvere <wlawvere@buffalo.edu> Subject: categories: Re: Grothendieck toposes Heraclitus of Ephesus used 'logos' for what is pretty well-known. Even more known is that 'logos' is in the first sentences of the Gospel of John. I'm not claiming anybody should care, but using 'logos' for a math concept must be justified, not for what I mentioned, but for what it is. What is this discussion really about? Just wondering. Patrik On 2016-11-09 04:35, Marta Bunge wrote:
Dear all,
Indeed, as pointed out by Bill Lawvere, the term "logos" was introduced and is central to the book by Freyd and Scedrov. In addition to that of Walter Tholen there is a review of it by myself
Categories, Allegories, by Peter J. Freyd; Andrej Scedrov
Review by Marta C. Bunge,
The Journal of Symbolic Logic 56-1 (March 1993) 352-354
Best wishes,
Marta
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