From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Barry Margolin Newsgroups: gmane.emacs.help Subject: Re: Why is booleanp defined this way? Date: Fri, 17 Apr 2015 23:11:18 -0400 Organization: A noiseless patient Spider Message-ID: References: <87twwemaxx.fsf@debian.uxu> <138bf565-898d-4b5a-8bea-eecd223c652b@googlegroups.com> <87d2322li0.fsf@debian.uxu> NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1429326930 17305 80.91.229.3 (18 Apr 2015 03:15:30 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 18 Apr 2015 03:15:30 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sat Apr 18 05:15:30 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 1YjJE7-00071l-Ut for geh-help-gnu-emacs@m.gmane.org; Sat, 18 Apr 2015 05:15:28 +0200 Original-Received: from localhost ([::1]:44349 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YjJE6-0004lK-Hk for geh-help-gnu-emacs@m.gmane.org; Fri, 17 Apr 2015 23:15:26 -0400 Original-Path: usenet.stanford.edu!news.kjsl.com!feeder.erje.net!1.eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!mx02.eternal-september.org!barmar.motzarella.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 22 Injection-Info: barmar.motzarella.org; posting-host="2be9e9f5dd9af768b8861af71b85fc28"; logging-data="27239"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+3oy9+bfnYuv52PVLBV+ni" User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X) Cancel-Lock: sha1:gQkIJy4obIRokJaNp9vOj1kwjmY= Original-Xref: usenet.stanford.edu gnu.emacs.help:211516 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:103799 Archived-At: In article <87d2322li0.fsf@debian.uxu>, Emanuel Berg wrote: > Rusi writes: > > >> I never used `booleanp' and I never experienced > >> that the boolean built-in type was missing from my > >> "ontology". > > > > If you how to write (and grok) an 'if' you have > > boolean in your ontology. That you dont know that > > you know is ok > > I know what a *boolean* is, just not why I would need > a built-in data type to express it. It's not a built-in type. It's a conceptual type, like "list". -- Barry Margolin, barmar@alum.mit.edu Arlington, MA *** PLEASE post questions in newsgroups, not directly to me ***