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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-orgmode-bounces+larch=yhetil.org@gnu.org Sender: "Emacs-orgmode" X-Migadu-Flow: FLOW_IN X-Migadu-To: larch@yhetil.org X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1656936885; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:dkim-signature; bh=Sjfd+cT8rNs2Gea4NSmmECcLdC7RJ0qJHc6nkFLTaUA=; b=QPhBpY1BpeA6yuemZvPxxTSIIE7Rzkd7tm8+cReQVyZhsiHoDuMqaIrJLVMskE+JNShirY 8RiT8NeMnvdaq8+x0vy2jRyYldAxHhLG3jm/sOHhqlbbaODASbFpEYOd+KuHPI1D3AVmiH pb8XMvAnYJ+asDEbjRqkxaNn3EtnDJ5blYcNB1mQjU/FQ8lsKdFRHq5gsg6XScK+ccXlSL ySm1QhdS1sTwspDVn2lN3q0lF7Cp2ulzbYp6XRxpHZ7m4SG52rvqMjulAH5RkNR0WP1tVp rpaaolpbPpXWhBIls4qbW1f9DGL3Rypm8erx0HDVmUwX1ghxCwF4Wwr8b0IQlw== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1656936885; a=rsa-sha256; cv=none; b=Q3AN9WyysvI/J0FOXM9REE9eliOR6vqHPOwKYwFoTbJdG9Qy8djhLgcm0mVHVYhdCcLdGB OBCri4QbU/+EaxXkgKda95rqfvH3Ezog+tdF5S88sq1gOiYFyotfHhMcAcpcAFGZi4i18G CSi0KD+B4akyVp+jUvHR1hFbT3b+KXcsMB/zHGzPyfkUHO2ZgkcUJjNXtDP1eQNnPQ+XSC k6XDM0YoCYHlTS6dA8MeOWrLzxg/542Q5eAR8lq7zr2szAGPnj6oV/wcBR1/sULFJv24A8 M4kEgx2uWpKr5JUOGjh+8LmJ8fWnTYjtZeZBqEnbUIT/N5buXkRshFNPLHaTZA== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=tuxteam.de header.s=mail header.b=NWTcuD+O; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "emacs-orgmode-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="emacs-orgmode-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -0.14 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=tuxteam.de header.s=mail header.b=NWTcuD+O; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "emacs-orgmode-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="emacs-orgmode-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: CACA43F8D6 X-Spam-Score: -0.14 X-Migadu-Scanner: scn0.migadu.com X-TUID: ulSaLAlbrpM/ --y0tFcixTYDUjEdZd Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jul 04, 2022 at 08:46:11AM +0200, Martin Steffen wrote: [...] > In some sense that's defendable (that what could call natural numbers is > a cultural question or historical, like looking at what Peano did nor > did not define). >=20 > On the other hand, one normally does not just deals with the numbers as > such, one does something with it (like comparing them or calculating > with them) [...] Yes, since Uwe mentioned Peano, that's why I pointed out that Peano doesn't care (you have to get to algebra, i.e. "up" in the conventional foundational ladder) for 0 to have a special role. About the cultural thing... you seem to be a zero-counter (as I am, too): there, too, I think that "our" position isn't in any way "better" -- some theorems look better this way, some that way; some inductions are easier to start at 1, some at 0. Cheers --=20 t --y0tFcixTYDUjEdZd Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQRp53liolZD6iXhAoIFyCz1etHaRgUCYsLZIQAKCRAFyCz1etHa Rv8mAJkB/3UIGroAd78172HKoqiPf0bKlACffgHWy2ze2TenPSXjs0viAkytjRI= =/ozx -----END PGP SIGNATURE----- --y0tFcixTYDUjEdZd--