<meta charset="utf-8"><span class="Apple-style-span" style="font-family: sans-serif; font-size: 13px; line-height: 19px; "><div>No need to explode! Explosions happen in classical logics, but as already a link from Bob's link shows, <a href="http://en.wikipedia.org/wiki/Paraconsistent_logic">paraconsistent logics</a> can deal more gracefully with inconsistencies. I used to converse with some paraconsistent people. There's even a handbook on it: </div>
<i style="text-decoration: underline; color: rgb(51, 102, 187); background-image: url(http://bits.wikimedia.org/skins-1.5/vector/images/external-link-ltr-icon.png?2); background-attachment: initial; background-origin: initial; background-clip: initial; background-color: initial; padding-top: 0px; padding-right: 13px; padding-bottom: 0px; padding-left: 0px; background-position: 100% 50%; background-repeat: no-repeat no-repeat; "><a href="http://www.amazon.com/dp/1904987737/" class="external text" rel="nofollow" style="text-decoration: underline; color: rgb(51, 102, 187); background-image: url(http://bits.wikimedia.org/skins-1.5/vector/images/external-link-ltr-icon.png?2); background-attachment: initial; background-origin: initial; background-clip: initial; background-color: initial; padding-top: 0px; padding-right: 13px; padding-bottom: 0px; padding-left: 0px; background-position: 100% 50%; background-repeat: no-repeat no-repeat; ">Handbook of Paraconsistency</a></i> (<a href="http://en.wikipedia.org/wiki/Jean-Yves_B%C3%A9ziau" title="Jean-Yves Béziau" style="text-decoration: none; color: rgb(6, 69, 173); background-image: none; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: initial; background-position: initial initial; background-repeat: initial initial; ">Jean-Yves Béziau</a>, <a href="http://en.wikipedia.org/wiki/Walter_Carnielli" title="Walter Carnielli" style="text-decoration: none; color: rgb(6, 69, 173); background-image: none; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: initial; background-position: initial initial; background-repeat: initial initial; ">Walter Carnielli</a> and <a href="http://en.wikipedia.org/wiki/Dov_Gabbay" title="Dov Gabbay" style="text-decoration: none; color: rgb(6, 69, 173); background-image: none; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: initial; background-position: initial initial; background-repeat: initial initial; ">Dov Gabbay</a>, eds). London: King's College, 2007. <a href="http://en.wikipedia.org/wiki/Special:BookSources/9781904987734" class="internal mw-magiclink-isbn" style="text-decoration: none; color: rgb(6, 69, 173); background-image: none; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: initial; background-position: initial initial; background-repeat: initial initial; ">ISBN 978-1-904987-73-4</a></span><br>
<br><div>Maybe it should be a companion field guide for the next Bioblitz, when dealing with, well, logical issues in taxonomy ;-)</div><div><br></div><div>Bertram</div><div><br></div><div><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<p class="p1">--</p>
<p class="p1">Bertram Ludäscher</p>
<p class="p1">Professor of Computer Science</p>
<p class="p1">Dept of Computer Science & Genome Center</p>
<p class="p1">University of California, Davis </p>
<p class="p1"><a href="mailto:ludaesch@ucdavis.edu">ludaesch@ucdavis.edu</a> / <a href="http://daks.ucdavis.edu">daks.ucdavis.edu</a></p>
<p class="p1">Phone: +1-530-554-1800</p></div><div><br><div class="gmail_quote">On Wed, Nov 3, 2010 at 8:15 PM, Bob Morris <span dir="ltr"><<a href="mailto:morris.bob@gmail.com">morris.bob@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Ah, but here's the rub when it comes to Propositional or First Order Logic: If there is any assertion of Rich's---or anybody else's---about which you, Nico C, both agree and disagree, then every assertion whatsoever of yours is correct. Now that part, I realize you already accept. The catch is that every assertion whatsoever of yours is also false. See <a href="http://en.wikipedia.org/wiki/Principle_of_explosion" target="_blank">http://en.wikipedia.org/wiki/Principle_of_explosion</a> <br>
--Bob<br><br><br><br><br><div class="gmail_quote"><div><div></div><div class="h5">On Wed, Nov 3, 2010 at 10:49 PM, Nico Cellinese <span dir="ltr"><<a href="mailto:ncellinese@flmnh.ufl.edu" target="_blank">ncellinese@flmnh.ufl.edu</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex"><div><div></div><div class="h5">
<div style="word-wrap:break-word">Wonderful to agree and disagree with you, yes indeed, even better with *spirit*! <div><br></div><div><div><div><div><blockquote type="cite"><div>Jon Stewart would be proud of us both.<br>
</div></blockquote><div><br></div></div>I went to the rally in DC last Saturday! We two are indeed sane :-)</div><div><div><br><blockquote type="cite"><div>As for the utility of ranks -- well, I'm ready to agree to disagree, as long<br>
as we can both acknowledge that lots and lots of existing data "out there"<br>are still classified (in a taxonomic sense) against the Linnaean<br>nomenclatural system, for which dwc:taxonRank is a relevant (at least)<br>
attribute.<br></div></blockquote><div><br></div></div>Indeed! As mentioned in a previous email to you, I can live (even happy) with dwc:taxonRank :-)</div><div><br></div><div>Nico (who does not believe in species but thinks only clades are real)</div>
<div><br></div><div><br></div><br></div></div><div><><><><><><><><><><><><><><><><><><><><><><><><><br>
Nico Cellinese, Ph.D.<br>Assistant Curator, Herbarium & Informatics<br>Adjunct Assistant Professor, Department of Biology<br><br>Florida Museum of Natural History<br>University of Florida<br>354 Dickinson Hall, PO Box 117800<br>
Gainesville, FL 32611-7800, U.S.A.<br>Tel. 352-273-1979<br>Fax 352-846-1861<br><a href="http://cellinese.blogspot.com/" target="_blank">http://cellinese.blogspot.com/</a><br><br><br><br></div></div><br></div></div><div class="im">
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<br></div></blockquote></div><br><br clear="all"><br>-- <br>Robert A. Morris<br>Emeritus Professor of Computer Science<br>UMASS-Boston<br>100 Morrissey Blvd<br>Boston, MA 02125-3390<br>Associate, Harvard University Herbaria<br>
email: <a href="mailto:morris.bob@gmail.com" target="_blank">morris.bob@gmail.com</a><br>web: <a href="http://bdei.cs.umb.edu/" target="_blank">http://bdei.cs.umb.edu/</a><br>web: <a href="http://etaxonomy.org/mw/FilteredPush" target="_blank">http://etaxonomy.org/mw/FilteredPush</a><br>
<a href="http://www.cs.umb.edu/%7Eram" target="_blank">http://www.cs.umb.edu/~ram</a><br>phone (+1) 857 222 7992 (mobile)<br><br>
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