From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,db88d0444fafe8eb X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news3.google.com!news.glorb.com!npeer.de.kpn-eurorings.net!newsfeed.arcor.de!news.arcor.de!not-for-mail Date: Fri, 02 Sep 2005 16:23:23 +0200 From: Georg Bauhaus User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Surprise in array concatenation References: <1125544603.561847.32140@g47g2000cwa.googlegroups.com> <14muavojz308w.1ouv7xin79rqu$.dlg@40tude.net> <4316e8ff$0$24161$9b4e6d93@newsread4.arcor-online.net> <1ckzkebgd9rdq.pubzw2q4ps6m$.dlg@40tude.net> <43171fcb$0$2107$9b4e6d93@newsread2.arcor-online.net> <431848bb$0$24154$9b4e6d93@newsread4.arcor-online.net> <1kxo6x8m5dy4d$.16lem2f2js2uy.dlg@40tude.net> In-Reply-To: <1kxo6x8m5dy4d$.16lem2f2js2uy.dlg@40tude.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Message-ID: <43187c4b$0$2114$9b4e6d93@newsread2.arcor-online.net> Organization: Arcor NNTP-Posting-Date: 02 Sep 2005 18:22:35 MEST NNTP-Posting-Host: 80c30408.newsread2.arcor-online.net X-Trace: DXC=Y9ZWjfmiWXk?m49DcKk?RnQ5U85hF6f;djW\KbG]kaMhQ>n?D9BSA]l:4>1GVLc9Ab8JM^O\[iIdccH[`X;KoIkf X-Complaints-To: abuse@arcor.de Xref: g2news1.google.com comp.lang.ada:4407 Date: 2005-09-02T18:22:35+02:00 List-Id: Dmitry A. Kazakov wrote: > On Fri, 02 Sep 2005 12:43:24 +0200, Georg Bauhaus wrote: > > >>Dmitry A. Kazakov wrote: >> >> >>>>>The problem with the current (Ada 83) design is that it tries to abstract >>>>>away trivial mathematical facts: >>>> >>>>As does a computer :-) >>> >>>It does what you tell it. Computers do not have free will! (:-)) >> >>So why do you want to tell it about non-computer mathematics? > > > Huh, there is only mathematics and non-mathematics! Not at all. Mathematics is not even a well defined term in a formal sense of the word "definition". (Notice the recursion :-) Thus computer-mathematics (as in theory of real, operating hardware) if used in a PL context has to start from some description of the real computer to be used with a PL program. Real computers executing (non-empty) programs translated from Ada text cannot but transorm a finite number (> 0) of finite (non-empty) sets of discrete "fantasies" of electro-magnetic values, somehow coping with the effects of one or more "times". That excludes infinity and no-bits from real-computer mathematics, for a start. Likewise, forget about non-discrete numbers.