From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Newsgroups: gmane.emacs.help Subject: Re: local binding, too local... Date: Sat, 8 Dec 2018 22:59:16 +0100 Message-ID: <20181208215915.GA29962@tuxteam.de> References: <0583DE39-42E2-4D05-97F6-3D709DBC73FE@gmail.com> <30D13139-2EAB-4195-9DFD-4832C092B5A1@gmail.com> <20181208080217.GA4367@tuxteam.de> <5DC58693-6BE0-48E9-AC20-9C6D99E069E7@gmail.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="k+w/mQv8wyuph6w0" X-Trace: blaine.gmane.org 1544306272 16041 195.159.176.226 (8 Dec 2018 21:57:52 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 8 Dec 2018 21:57:52 +0000 (UTC) User-Agent: Mutt/1.5.21 (2010-09-15) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sat Dec 08 22:57:48 2018 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gVkbc-00044G-NC for geh-help-gnu-emacs@m.gmane.org; Sat, 08 Dec 2018 22:57:48 +0100 Original-Received: from localhost ([::1]:52268 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gVkdj-00044W-9f for geh-help-gnu-emacs@m.gmane.org; Sat, 08 Dec 2018 16:59:59 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:36047) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gVkdC-00044F-Ui for help-gnu-emacs@gnu.org; Sat, 08 Dec 2018 16:59:27 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gVkd9-0006Jn-Nk for help-gnu-emacs@gnu.org; Sat, 08 Dec 2018 16:59:26 -0500 Original-Received: from mail.tuxteam.de ([5.199.139.25]:48137) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gVkd9-0006Hg-DB for help-gnu-emacs@gnu.org; Sat, 08 Dec 2018 16:59:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tuxteam.de; s=mail; h=From:In-Reply-To:Content-Type:MIME-Version:References:Message-ID:Subject:To:Date; bh=fsoVgpMVefYgJU3rYhAhtERpDD1uO6tKyPokhlVs2Hc=; b=uWF78iIvbn6mgVSPFFTPjxjJHIaHkG094zxznLo9qbjOznqn+p2ZRdlOJ6OtNdjRpNnsAilXu0EY66Zc0MTXeJSxrKTfRVuZtWRrDpCXpdKEMz94uBa1W4knAv+/+ZSgGG6wey5ENiolPbMF0xgd2kNieUBjtLYLpRHaIF4hOcho9KhmtheUWtXwVbPgnJA4QOgviTCP+EcqkGTo0hDASmmjzta9UX2+HCfuVTL7kJzAI+EQ55TF95l6IvR/vy0AvTOZ3ME6j7He7pyQFyWVF+sgNFu+Sb6e0UgiK9B5Gu1+kNaJmYimLfCokRqtg+K7WBSEpThaxQ1all4FFEoZvQ==; Original-Received: from tomas by mail.tuxteam.de with local (Exim 4.80) (envelope-from ) id 1gVkd2-000853-2U for help-gnu-emacs@gnu.org; Sat, 08 Dec 2018 22:59:16 +0100 Content-Disposition: inline In-Reply-To: <5DC58693-6BE0-48E9-AC20-9C6D99E069E7@gmail.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 5.199.139.25 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 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" Xref: news.gmane.org gmane.emacs.help:118924 Archived-At: --k+w/mQv8wyuph6w0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Dec 08, 2018 at 11:45:32PM +0900, Jean-Christophe Helary wrote: > Thank you Tomas. >=20 > So can you say that "binding" is like "creating" a variable ? No (at least not in this Lisp context). It's more like associating a name with a variable. > While assigning is just putting a value in that variable ? Kind of, yes. Reality is a bit more complex, though... > I remember in my math classes, when we were using x and y, etc. we were b= inding x and y, right ? And then when we had values for x and y we were ass= igning values. Is that correct ? In maths, binding means associating a value with a name, that's easy. And there's no correspondence for assignment. You can substitute a bound variable (say x is bound to 5) by for its value everywhere. "Assigning 7 to x" wouldn't make much sense in maths, because it would amount to assigning 7 to 5. Cheers -- tom=C3=A1s --k+w/mQv8wyuph6w0 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlwMPrMACgkQBcgs9XrR2kbSDACfXO7D2Iw/1BQk8OlD5KU07rKz ldMAn3Ooavx/rjLTL4wGTfhof5Ev6Z6e =7yjX -----END PGP SIGNATURE----- --k+w/mQv8wyuph6w0--