From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/6213 Path: news.gmane.org!not-for-mail From: Bas Spitters Newsgroups: gmane.science.mathematics.categories Subject: Re: Is equality evil? Date: Fri, 24 Sep 2010 14:50:17 +0200 Message-ID: References: Reply-To: Bas Spitters NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Trace: dough.gmane.org 1285374149 25584 80.91.229.12 (25 Sep 2010 00:22:29 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sat, 25 Sep 2010 00:22:29 +0000 (UTC) Cc: Toby Bartels , categories@mta.ca To: Thomas Streicher Original-X-From: majordomo@mlist.mta.ca Sat Sep 25 02:22:28 2010 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from smtpy.mta.ca ([138.73.1.139]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1OzIX2-0001hm-K2 for gsmc-categories@m.gmane.org; Sat, 25 Sep 2010 02:22:24 +0200 Original-Received: from mlist.mta.ca ([138.73.1.63]:48009) by smtpy.mta.ca with esmtp (Exim 4.71) (envelope-from ) id 1OzIW4-0006tM-TO; Fri, 24 Sep 2010 21:21:25 -0300 Original-Received: from majordomo by mlist.mta.ca with local (Exim 4.71) (envelope-from ) id 1OzIW1-000276-Tk for categories-list@mlist.mta.ca; Fri, 24 Sep 2010 21:21:22 -0300 In-Reply-To: Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:6213 Archived-At: > Intensional Id-types might be convenient for providing a logic where equality > gets identified with isomorphism or even weak equivalence. But that's not > avoiding equality it's rather `liberal'ising it. Vladimir Voevodsky just posted a draft manuscript about these issues: http://www.math.ias.edu/~vladimir/Site3/Univalent_Foundations.html Bas [For admin and other information see: http://www.mta.ca/~cat-dist/ ]