Path: csiph.com!2.us.feeder.erje.net!feeder.erje.net!1.eu.feeder.erje.net!weretis.net!feeder4.news.weretis.net!border2.nntp.ams1.giganews.com!nntp.giganews.com!buffer2.nntp.ams1.giganews.com!nntp.brightview.co.uk!news.brightview.co.uk.POSTED!not-for-mail NNTP-Posting-Date: Tue, 27 Dec 2016 12:52:53 -0600 From: Gareth Owen Newsgroups: comp.lang.c++ Subject: Re: Qucksort for Linked List References: <87d1gue00s.fsf@gmail.com> <87inqhdjmj.fsf@gmail.com> <8KadncH99b3rmcrFnZ2dnUU7-b_NnZ2d@giganews.com> <87wpewkir1.fsf@gmail.com> <8KadncP99b2-m8rFnZ2dnUU7-b-dnZ2d@giganews.com> <1_mdndo8d8VFmsrFnZ2dnUU7-KfNnZ2d@giganews.com> <9IKdnXuRhJnakcrFnZ2dnUU78KnNnZ2d@giganews.com> Date: Tue, 27 Dec 2016 18:52:52 +0000 Message-ID: <87wpelrypn.fsf@gmail.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) Cancel-Lock: sha1:I8LrjvWbFFAGJ+BBDUPEO9hW9eA= MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Lines: 19 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-kxl/r70N6Ju0CBD4jRSRt49URpXePCDRDqyrsExPf9sFm5MWxXHt/qMglnvpp40ZiWGPHMFKDaYsanr!VXo71a82uo+2AM9P56Rt7EpmwA/THidpcIlrzE5yeaRhyLwx3b+qIP73gE3o047ce54m+A== X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 X-Original-Bytes: 2583 Xref: csiph.com comp.lang.c++:47652 Mr Flibble writes: > On 27/12/2016 17:48, Mr Flibble wrote: >> On 27/12/2016 09:39, David Brown wrote: >>> 1 + ω = ω >> >> If "+" means addition than 1 + ω = ω is patently false. > > This of course is predicated on ω being a variable and not a > classification: if it is a classification then I assume it means > something along the lines of: It's the first transfinite ordinal - which you'd know if ... oh, never mind. Suffice to say, it's the correct and normal notation used in explaining the Hilbert Hotel paradox and such like, a formally correct way of writing what we casually think of as 1+∞ = ∞