From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id 64E662018A for ; Fri, 24 Jun 2016 16:44:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751426AbcFXQoy (ORCPT ); Fri, 24 Jun 2016 12:44:54 -0400 Received: from pb-smtp2.pobox.com ([64.147.108.71]:60033 "EHLO sasl.smtp.pobox.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751132AbcFXQox (ORCPT ); Fri, 24 Jun 2016 12:44:53 -0400 Received: from sasl.smtp.pobox.com (unknown [127.0.0.1]) by pb-smtp2.pobox.com (Postfix) with ESMTP id 7AC3025CEE; Fri, 24 Jun 2016 12:44:52 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pobox.com; h=from:to:cc :subject:references:date:in-reply-to:message-id:mime-version :content-type; s=sasl; bh=6R9NZ6RB69nMSYRQlNKkS9YwYTc=; b=e5a/i2 iuJSKfN1jnfY5S6pAQn86Isoc5VBcfiMDUGUt4ofcxuhA6GXnzXh7wIbBlkWe6gc wSHNrOJz8pPcE9V54pWf6DA/R6glKxxyXjVSyhIhWxa4ImvL6wNALM8t3hBuL6+W jiXrDI9O34VFRW1Kih3il3S+Nb8Qja2QIqA/k= DomainKey-Signature: a=rsa-sha1; c=nofws; d=pobox.com; h=from:to:cc :subject:references:date:in-reply-to:message-id:mime-version :content-type; q=dns; s=sasl; b=fAc5qMaNbf/tk/PofLJgt0iaxgyrshyr DMXOMGhc60KVbhr0ULiXM4BpCCmBoqjlyRQYzHaXkE/aVRMZTajzxSGUakr1W0zY 3FoOd7uq0S1EKm7KPcAggRpmObQnFuPCWTs8F7YSm4BfqmIWJPCCzf+uIYCjCvb3 T+yqsk/Z1oo= Received: from pb-smtp2.nyi.icgroup.com (unknown [127.0.0.1]) by pb-smtp2.pobox.com (Postfix) with ESMTP id 7446D25CED; Fri, 24 Jun 2016 12:44:52 -0400 (EDT) Received: from pobox.com (unknown [104.132.0.95]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by pb-smtp2.pobox.com (Postfix) with ESMTPSA id 044F725CEC; Fri, 24 Jun 2016 12:44:51 -0400 (EDT) From: Junio C Hamano To: Jeff King Cc: Philip Oakley , Git List Subject: Re: name for A..B ranges? References: <0648000B273C412AB7140AE959EBC99A@PhilipOakley> <20160624160943.GA3170@sigill.intra.peff.net> Date: Fri, 24 Jun 2016 09:44:49 -0700 In-Reply-To: <20160624160943.GA3170@sigill.intra.peff.net> (Jeff King's message of "Fri, 24 Jun 2016 12:09:43 -0400") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Pobox-Relay-ID: F8E6A24A-3A2A-11E6-8DF1-EE617A1B28F4-77302942!pb-smtp2.pobox.com Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Jeff King writes: > On Wed, Jun 22, 2016 at 08:25:59AM +0100, Philip Oakley wrote: > >> Is there a common name for the A..B range format (two dots) that would >> complement the A...B (three dots) symmetric range format's name? >> >> I was looking at the --left-right distinctions and noticed that the trail >> back to the symmetric range description was rather thin (it's buried within >> gitrevisions:Specifying Ranges, and even then its called a symmetric >> difference. > > I would just call it a range, or possibly a set difference. But I don't > think we have any established naming beyond that. Yup, I think "range" is the commonly used word in discussions here. When inventing A...B as a new thing in addition to A..B, we called the former "symmetric difference", and what is implied by that is the latter is "asymmetric difference"; we do not say that unless we are contrasting between the two, though.