From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/6343 Path: news.gmane.org!not-for-mail From: Tom Leinster Newsgroups: gmane.science.mathematics.categories Subject: Re: "schizophrenic" reference Date: Fri, 29 Oct 2010 03:34:21 +0100 Message-ID: References: Reply-To: Tom Leinster NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII"; format=flowed X-Trace: dough.gmane.org 1288398732 18255 80.91.229.12 (30 Oct 2010 00:32:12 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sat, 30 Oct 2010 00:32:12 +0000 (UTC) To: Original-X-From: majordomo@mlist.mta.ca Sat Oct 30 02:32:10 2010 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from smtpx.mta.ca ([138.73.1.114]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1PBzMf-0003fW-Hu for gsmc-categories@m.gmane.org; Sat, 30 Oct 2010 02:32:09 +0200 Original-Received: from mlist.mta.ca ([138.73.1.63]:58937) by smtpx.mta.ca with esmtp (Exim 4.71) (envelope-from ) id 1PBzLv-0005dO-0r; Fri, 29 Oct 2010 21:31:23 -0300 Original-Received: from majordomo by mlist.mta.ca with local (Exim 4.71) (envelope-from ) id 1PBzLs-0003gY-Nj for categories-list@mlist.mta.ca; Fri, 29 Oct 2010 21:31:20 -0300 In-Reply-To: Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:6343 Archived-At: I'm afraid I say this every time "schizophrenic" objects come up, but here I go again... Let's not use that word. To quote the Guardian style guide (http://www.guardian.co.uk/styleguide/s): schizophrenia, schizophrenic use only in a medical context, never to mean "in two minds", contradictory, or erratic, which is wrong, as well as offensive to people diagnosed with this illness. There is a concise summary of the history and terminology at http://ncatlab.org/nlab/show/dualizing+object which also links to a discussion of alternatives. "Dualizing object" and "ambimorphic object" are both used. Best wishes, Tom On Thu, 28 Oct 2010, Fred E.J. Linton wrote: > On Thu, 28 Oct 2010 05:14:24 AM EDT Prof. Peter Johnstone > wrote: > >> ... I don't claim credit (if that's the right word) for >> introducing this use of "schizophrenic". I got it from ... > > I wasn't aiming for an attribution of credit -- only for > a citation of use of the term in the accessible literature. > > Certainly I have, over the years, heard at least Isbell and > Lawvere -- and others -- refer to schizophrenic objects, > schizoid objects, objects with "split" -- or "multiple", or > "more than one" -- personality, and the like. > > How far back, "over the years"? -- Probably at least to the > early 'seventies, quite possibly earlier. > > Cheers, -- Fred > > > > [For admin and other information see: http://www.mta.ca/~cat-dist/ ] > [For admin and other information see: http://www.mta.ca/~cat-dist/ ]