X-FeedAbuse: http://nntpfeed.proxad.net/abuse.pl feeded by 195.154.70.45 Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!1.eu.feeder.erje.net!newsfeed.fsmpi.rwth-aachen.de!newsfeed.straub-nv.de!proxad.net!feeder1-2.proxad.net!nntpfeed.proxad.net!news.redatomik.org!newsfeed.xs4all.nl!newsfeed4.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.002 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'operator': 0.03; 'table.': 0.07; '-------': 0.09; 'false)': 0.09; 'xor': 0.09; 'output': 0.15; '(true,': 0.16; '-tkc': 0.16; 'from:addr:python.list': 0.16; 'from:addr:tim.thechases.com': 0.16; 'from:name:tim chase': 0.16; 'received:10.21': 0.16; 'wrote:': 0.16; 'subject:need': 0.18; 'input': 0.18; '>>>': 0.20; '%s"': 0.22; 'subject:problem': 0.22; 'header:In-Reply-To:1': 0.24; 'flying': 0.29; 'to:addr:python- list': 0.35; 'false': 0.35; 'there': 0.36; 'received:10': 0.37; 'subject:: ': 0.37; 'charset:us-ascii': 0.37; 'skip:p 20': 0.38; 'does': 0.39; 'enough': 0.39; 'to:addr:python.org': 0.39; 'received:46': 0.63; 'sounds': 0.72; '(a,': 0.84 X-Sender-Id: wwwh|x-authuser|tim@thechases.com X-Sender-Id: wwwh|x-authuser|tim@thechases.com X-MC-Relay: Neutral X-MailChannels-SenderId: wwwh|x-authuser|tim@thechases.com X-MailChannels-Auth-Id: wwwh X-MC-Loop-Signature: 1432850522709:83612882 X-MC-Ingress-Time: 1432850522709 Date: Thu, 28 May 2015 17:02:29 -0500 From: Tim Chase To: python-list@python.org Subject: Re: Logic problem: need better logic for desired thruth table. In-Reply-To: <3794b$55678d83$5419aafe$56138@news.ziggo.nl> References: <3794b$55678d83$5419aafe$56138@news.ziggo.nl> X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.25; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-AuthUser: tim@thechases.com X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 30 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1432850534 news.xs4all.nl 2964 [2001:888:2000:d::a6]:58141 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:91390 On 2015-05-28 23:50, Skybuck Flying wrote: > A = input > B = input > C = output > > A B C: > ------- > F F T > F T F > T F T > T T T > > Surpisingly enough I don't think there is a casual/common operator > for this thruth table. > > AND does not apply. > OR does not apply. > XOR does not apply. Sounds like you want "a or not b" >>> print("\n".join("A=%s B=%s: %s" % (a, b, a or not b) for a in (True, False) for b in (True, False))) A=True B=True: True A=True B=False: True A=False B=True: False A=False B=False: True -tkc