Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail From: =?UTF-8?Q?Andreas_R=c3=b6hler?= Newsgroups: comp.lang.python Subject: Re: Operator Precedence/Boolean Logic Date: Thu, 23 Jun 2016 10:32:20 +0200 Lines: 23 Message-ID: References: <15997174-44d5-431c-8f90-a8d700921820@googlegroups.com> <56ecacd4-cc17-48ec-9830-57c8113d16f6@googlegroups.com> <3a840cef-24d2-4abb-8e5b-dc80bf48944d@googlegroups.com> <63fe7ea9-a14f-94a2-cdd5-27aa902fbf6b@online.de> <576b8a41$0$2792$c3e8da3$76491128@news.astraweb.com> <576B9B33.2030903@rece.vub.ac.be> <07e13a5d-38bf-7bfa-f45f-a24dea8e3004@online.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: news.uni-berlin.de 7gLj7mdqHPd0kOJXaqoXtwAuG+SV4BRVzCR2YP6bH6SQ== Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.023 X-Spam-Evidence: '*H*': 0.95; '*S*': 0.00; 'diff': 0.05; 'received:192.168.178': 0.07; 'indeed,': 0.09; 'received:212.227.126': 0.09; '2016': 0.16; 'andreas': 0.16; 'emptiness': 0.16; 'infinity': 0.16; 'integers.': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'zero,': 0.16; 'wrote:': 0.16; 'tells': 0.18; '>>>': 0.20; 'header:In-Reply- To:1': 0.24; 'header:User-Agent:1': 0.26; 'towards': 0.28; 'subject:/': 0.30; 'steven': 0.33; 'list': 0.34; 'could': 0.35; 'nothing.': 0.35; 'whilst': 0.35; 'unit': 0.35; 'should': 0.36; 'there': 0.36; 'to:addr:python-list': 0.36; 'subject:: ': 0.37; 'being': 0.37; 'expect': 0.37; 'one,': 0.37; 'why': 0.39; 'received:192': 0.39; 'to:addr:python.org': 0.40; 'received:de': 0.40; 'skip:n 10': 0.62; 'different': 0.63; 'between': 0.65; 'fundamental': 0.66; 'thursday': 0.66; "d'aprano:": 0.84; 'pardon': 0.84; 'schreef': 0.84 User-Agent: Mozilla/5.0 (X11; Linux i686; rv:45.0) Gecko/20100101 Icedove/45.1.0 In-Reply-To: <576B9B33.2030903@rece.vub.ac.be> X-Provags-ID: V03:K0:/hOT52rimgxaZtssXpLWkUdsgxGDSURfrWyPIfjQoyD5H5bX2dH 52ovQAnyaRTnAc/xuyfttBe2oubXosUAqW7jXvL4GirzsbGoN+xQjwZ5cUiGEh8LFnMhX4l VzeXLwS3QRE2D2zzbLCYEF4bRt4QwnY+e8ItKEhWYslNmAPMMGYKS/0/8Yf54qhqPtXBTDb evBJa22vDrzvO+QGlKxAA== X-UI-Out-Filterresults: notjunk:1;V01:K0:qZM5wNXcypA=:98LvFvmPgL8s1vmnycapxj 0hgsQ4uqCFgKeCkOKQ+z6Gk913aI9MSTwOmmbt8zDCPtzQaPnK+VEKdgN9F33/TkmOZnz7Ziz NUYh88QWzKutG0mABVkUul+Q7+2Clva18jQrmOGN2drdzngCQmyIXLzo4gvd7AWj831y3/9D8 ZEKEI4sxo/8E7249JUjasOZmG1rR7Dyybiv7AskBh0Y7sw9tlOglTFirLaWg2d+Gn1J9J4tD5 w7YO3AAeM5cLNhqarq7UwIi4Xz3d8jydirgk8cjw/8GTlIWWsjOCEZd5n/ORiULUbFMLUjc6x MSSN6h2J4vMi0XooTqlD1eDCqsPzudUNeoZeN8dF06e2ZjImSc4cRhKaOPXEMZF75nE6dDgWH haoPK4aDPBUiqxnKapSO7F//LkT8C/K0tnjz4kI/s9Z2jKjGYcf/VdQB7jhpMSp4x8yC1i7KM fwt6w/Q3fBqU764jXs0d3H7v9yOugwKtNjDhSjZyw2SNjCQwrq1V3WL0NkLutHbCFu/ncobjA A1zVFht8nh8XlqcNj9wQ1drPSglT08CpGapAuR5HAgWrgwYFltzOaTak71URxfBZEL3XSWaTj 9nw/IXZOXD9Tl2JrSzoTX2GqUiBQgoep1uONsOIvwTLODKVtwstUUpCcdQOrAGN3sCwr+5JGZ woaW7XqigFv6uvgdDKw+h0FfSLbOMhGLbxPyw6z63h7phaA/qRAbRu4C6Aq9VF2Gf6gEZNohH mKuA7g0tar5LQjFL X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: <07e13a5d-38bf-7bfa-f45f-a24dea8e3004@online.de> X-Mailman-Original-References: <15997174-44d5-431c-8f90-a8d700921820@googlegroups.com> <56ecacd4-cc17-48ec-9830-57c8113d16f6@googlegroups.com> <3a840cef-24d2-4abb-8e5b-dc80bf48944d@googlegroups.com> <63fe7ea9-a14f-94a2-cdd5-27aa902fbf6b@online.de> <576b8a41$0$2792$c3e8da3$76491128@news.astraweb.com> <576B9B33.2030903@rece.vub.ac.be> Xref: csiph.com comp.lang.python:110382 On 23.06.2016 10:17, Antoon Pardon wrote: > Op 23-06-16 om 09:05 schreef Steven D'Aprano: >> On Thursday 23 June 2016 16:34, Andreas Röhler wrote: >> >>> Indeed, why should the result of 4 - 4 have a different truth-value than >>> 4 - 3 ? >> Because 4-4 is zero, which is "nothing", while 4-3 is one, which is >> "something". > No zero is not nothing. If zere is nothing and an empty list is nothing, > I would expect zero to be an empty list or that they could be used interchangebly. > > There is a fundamental diff between zero and emptiness. Zero is just a relation in the realm of integers. It tells being in the midst between positiv and negativ infinity. Number one tells being one unit towards positiv infinity in relation to negativ infinity. And so on. Whilst emptiness tells about non-existence.