From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Pascal J. Bourguignon" Newsgroups: gmane.emacs.help Subject: Re: if vs. when vs. and: style question Date: Wed, 25 Mar 2015 01:20:52 +0100 Organization: Informatimago Message-ID: <87a8z23p23.fsf@kuiper.lan.informatimago.com> References: <87sicvwckx.fsf@wmi.amu.edu.pl> <87wq27yvqg.fsf@debian.uxu> <8d531e99-7260-4263-ac99-09c6871e2708@googlegroups.com> <87vbhq53lf.fsf@debian.uxu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1427243487 9339 80.91.229.3 (25 Mar 2015 00:31:27 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 25 Mar 2015 00:31:27 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Mar 25 01:31:27 2015 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YaZED-0003zD-Nm for geh-help-gnu-emacs@m.gmane.org; Wed, 25 Mar 2015 01:31:25 +0100 Original-Received: from localhost ([::1]:35265 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YaZEC-00023n-12 for geh-help-gnu-emacs@m.gmane.org; Tue, 24 Mar 2015 20:31:24 -0400 Original-Path: usenet.stanford.edu!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 27 Original-X-Trace: individual.net o1Am0uekOA+d5usU2GeSyA2Ywub1S/zecxi96I3zW952KusCKb Cancel-Lock: sha1:N2JiYmQwMTc2ODIwNjkyNzdjNmIyYjI2NGY0ODhhN2E4YzBhY2U5Mw== sha1:+vYy7HIOnfHTM84itcZZhek57/4= Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAQMAAABtzGvEAAAABlBMVEUAAAD///+l2Z/dAAAA oElEQVR4nK3OsRHCMAwF0O8YQufUNIQRGIAja9CxSA55AxZgFO4coMgYrEDDQZWPIlNAjwq9 033pbOBPtbXuB6PKNBn5gZkhGa86Z4x2wE67O+06WxGD/HCOGR0deY3f9Ijwwt7rNGNf6Oac l/GuZTF1wFGKiYYHKSFAkjIo1b6sCYS1sVmFhhhahKQssRjRT90ITWUk6vvK3RsPGs+M1RuR mV+hO/VvFAAAAABJRU5ErkJggg== X-Accept-Language: fr, es, en User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) Original-Xref: usenet.stanford.edu gnu.emacs.help:211018 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:103299 Archived-At: Emanuel Berg writes: > If what you mean by "weaker" is some attempt at > a formalization of "you can do less" then I do not > agree that should be preferred by definition. > > For example, here > > (1+ 5) ; 6 > (+ 1 5) ; 6 But then, why stop with +? You could use instead: (funcall (additive-operator (ring integer)) (neutral-element (multiplicative-operator (ring integer))) 5) ; 6 or something even more general? -- __Pascal Bourguignon__ http://www.informatimago.com/ “The factory of the future will have only two employees, a man and a dog. The man will be there to feed the dog. The dog will be there to keep the man from touching the equipment.” -- Carl Bass CEO Autodesk