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BEGIN:VEVENT
UID:/NewsandEvents/Archives/2008/newsitem/2322/18-
 April-2008-Logic-Tea-Michael-Morreau-University-of
 -Maryland
DTSTAMP:20080417T000000
SUMMARY:Logic Tea, Michael Morreau, University of 
 Maryland
ATTENDEE;ROLE=Speaker:Michael Morreau, University 
 of Maryland
DTSTART;VALUE=DATE:20080418
DTEND;VALUE=DATE:20080418
LOCATION:Room P.017, Euclides Building, Plantage M
 uidergracht 24, Amsterdam
DESCRIPTION:A comparative conception of similarity
  lies at the foundation of much philosophy. Which 
 of several future persons is you? According to clo
 sest-continuer theory, whichever resembles you mor
 e closely, overall. Would the match have lit, if s
 truck? Possible-worlds theorists say this depends 
 on what happened in those worlds in which the matc
 h was struck, but which are otherwise, overall, mo
 st like the actual world.   I take up the question
  of how a relation of overall comparative similari
 ty might emerge from a multitude of similarities a
 nd differences in various respects. The surprising
  answer is that, basically, it cannot. Kenneth Arr
 ow's celebrated theorem of social choice shows tha
 t the only way to combine several dimensions of co
 mparative similarity into a single overall compari
 son is for one of the dimensions to be a dictator.
  This plays havoc with philosophy founded on compa
 rative similarity.    The Logic Tea homepage can b
 e found at https://www.illc.uva.nl/logic_tea/ For 
 more information, please contact Joel Uckelmann (j
 uckelma at science.uva.nl) or Edgar Andrade (E.J.A
 ndradeLotero at uva.nl
X-ALT-DESC;FMTTYPE=text/html:\n      <p>\n        
 A comparative conception of similarity lies at the
  foundation of much philosophy. Which of several f
 uture persons is you? According to closest-continu
 er theory, whichever resembles you more closely, o
 verall. Would the match have lit, if struck? Possi
 ble-worlds theorists say this depends on what happ
 ened in those worlds in which the match was struck
 , but which are otherwise, overall, most like the 
 actual world.\n      </p>\n      <p>I take up the 
 question of how a relation of overall comparative 
 similarity might emerge from a multitude of simila
 rities and differences in various respects. The su
 rprising answer is that, basically, it cannot. Ken
 neth Arrow's celebrated theorem of social choice s
 hows that the only way to combine several dimensio
 ns of comparative similarity into a single overall
  comparison is for one of the dimensions to be a d
 ictator. This plays havoc with philosophy founded 
 on comparative similarity.\n      </p>\n    \n    
   <p>\n        The Logic Tea homepage can be found
  at\n         <a target="_blank" href="https://www
 .illc.uva.nl/logic_tea/">https://www.illc.uva.nl/l
 ogic_tea/</a>\n         For more information, plea
 se contact\n         Joel Uckelmann (<a class="ema
 il">juckelma <span class="at">at</span> science.uv
 a.nl</a>)\n         or Edgar Andrade (<a class="em
 ail">E.J.AndradeLotero <span class="at">at</span> 
 uva.nl</a>\n      </p>\n    
URL:/NewsandEvents/Archives/2008/newsitem/2322/18-
 April-2008-Logic-Tea-Michael-Morreau-University-of
 -Maryland
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