From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/3718 Path: news.gmane.org!not-for-mail From: Jacques Carette Newsgroups: gmane.science.mathematics.categories Subject: Co-algebraic structure of the typed lambda-calculus Date: Tue, 03 Apr 2007 17:21:18 -0400 Message-ID: NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1241019481 9964 80.91.229.2 (29 Apr 2009 15:38:01 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 15:38:01 +0000 (UTC) To: categories Original-X-From: rrosebru@mta.ca Tue Apr 3 23:27:00 2007 -0300 Return-path: Envelope-to: categories-list@mta.ca Delivery-date: Tue, 03 Apr 2007 23:27:00 -0300 Original-Received: from Majordom by mailserv.mta.ca with local (Exim 4.61) (envelope-from ) id 1HYv1n-0000WX-3S for categories-list@mta.ca; Tue, 03 Apr 2007 23:15:15 -0300 Original-Sender: cat-dist@mta.ca Precedence: bulk X-Keywords: X-UID: 5 Original-Lines: 18 Xref: news.gmane.org gmane.science.mathematics.categories:3718 Archived-At: I have been able to find some references to the co-algebraic structure of the untyped lambda-calculus, (work of Honsell and Lenisa, available at http://citeseer.ist.psu.edu/95166.html and http://portal.acm.org/citation.cfm?id=645892.671579&coll=&dl=ACM&CFID=15151515&CFTOKEN=6184618 ), but my search for a typed analogue has not turned up anything (which I could recognize as being what I was looking for). I found work by various authors (P. Aczel, B. Jacobs, J. Rutten, etc) which seemed 'close', but nothing seemed quite 'right'. I rather suspect that this has already been done and I am simply not using the right terms in my searches - could someone please provide me with some references? Thanks, Jacques