Logic

Philosophical, mathematical and computational logic, linguistics, formal argument, game theory, fallacies, paradoxes, puzzles and other related issues.

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  • Fallacies
    5 Topics
    26 Posts
    Last post by David Henry7 View the latest post
    November 26th, 2014, 5:25 am
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  • Logic and Fiction
    by owleye » April 29th, 2011, 10:36 pm
    0 Comments
    1004 Views
    Last post by owleye View the latest post
    April 29th, 2011, 10:36 pm
  • On Denoting
    by Diogenes » March 6th, 2011, 9:09 pm
    4 Comments
    2245 Views
    Last post by Lomax View the latest post
    April 24th, 2011, 11:23 am
  • Logic of an 'Ultimate Cause' of Existence Doomed to Fail?
    1, 2, 3, 4, 5by Mossling » January 12th, 2011, 12:52 am
    124 Comments
    31437 Views
    Last post by xcthulhu View the latest post
    April 9th, 2011, 12:47 pm
  • Decision Theory Puzzle
    by xcthulhu » April 2nd, 2011, 9:01 pm
    5 Comments
    2055 Views
    Last post by Au 87 View the latest post
    April 7th, 2011, 10:07 am
  • Logic question...
    by iNietzsche » March 20th, 2011, 4:31 am
    6 Comments
    4376 Views
    Last post by linford86 View the latest post
    April 2nd, 2011, 6:29 pm
  • Is Logic entailment?
    by kvs232 » July 15th, 2009, 5:56 pm
    8 Comments
    4684 Views
    Last post by xcthulhu View the latest post
    April 2nd, 2011, 4:18 pm
  • Contradictions, Nonsense and Existence
    by Emmanuel Goldstein » September 19th, 2009, 12:43 pm
    8 Comments
    4357 Views
    Last post by NONG_OOB View the latest post
    April 1st, 2011, 6:19 pm
  • Valid?
    by uzza » November 23rd, 2009, 3:52 pm
    13 Comments
    3859 Views
    Last post by NONG_OOB View the latest post
    April 1st, 2011, 4:07 pm
  • What is Logic?
    Attachment(s) by iNietzsche » March 20th, 2011, 10:54 pm
    7 Comments
    4060 Views
    Last post by xcthulhu View the latest post
    March 27th, 2011, 8:03 pm
  • Existence in Philosophy and Beyond
    by xcthulhu » March 8th, 2011, 12:26 pm
    5 Comments
    2404 Views
    Last post by 0oqpo0 View the latest post
    March 9th, 2011, 6:40 pm
  • The Pinocchio Paradox
    1, 2Attachment(s) by RedStarPride » February 7th, 2011, 9:55 pm
    47 Comments
    14984 Views
    Last post by xcthulhu View the latest post
    March 8th, 2011, 1:08 am
  • Four reasons why mathematics ends in meaninglessness
    by bas » January 25th, 2011, 7:43 am
    9 Comments
    3205 Views
    Last post by Diogenes View the latest post
    March 6th, 2011, 9:25 pm
  • Hilbert's Hotel
    by 0oqpo0 » February 26th, 2011, 2:52 pm
    7 Comments
    3098 Views
    Last post by xcthulhu View the latest post
    February 26th, 2011, 8:57 pm
  • What's wrong with this argument?
    by recoit2011 » February 20th, 2011, 3:59 pm
    7 Comments
    3113 Views
    Last post by xcthulhu View the latest post
    February 22nd, 2011, 12:22 am
  • The Transitive Paradox
    by RedStarPride » February 8th, 2011, 12:33 am
    11 Comments
    3838 Views
    Last post by owleye View the latest post
    February 12th, 2011, 10:47 am
  • Questions about Infinity
    by Positor » January 25th, 2011, 5:55 pm
    3 Comments
    2999 Views
    Last post by 0oqpo0 View the latest post
    January 26th, 2011, 3:19 pm
  • coffee drinking
    1, 2by 0oqpo0 » December 30th, 2010, 3:06 pm
    42 Comments
    10573 Views
    Last post by 0oqpo0 View the latest post
    January 22nd, 2011, 3:59 pm
  • SEMANTICS/LINGUISTICS/WORDS
    by Quare » December 31st, 2010, 2:00 am
    0 Comments
    993 Views
    Last post by Quare View the latest post
    December 31st, 2010, 2:00 am
  • Linguistic Apercu: Reality and Levels of Magnification
    by HomunculusThor » December 26th, 2010, 7:01 pm
    12 Comments
    4027 Views
    Last post by owleye View the latest post
    December 29th, 2010, 12:44 pm
  • Is Religion Dishonest?
    1, 2, 3, 4by Sisyphus » March 28th, 2010, 3:39 pm
    118 Comments
    25245 Views
    Last post by HexHammer View the latest post
    December 20th, 2010, 2:55 pm
  • Men are evil- Logic
    by cg2028 » August 30th, 2010, 12:45 am
    8 Comments
    2331 Views
    Last post by Lomax View the latest post
    December 17th, 2010, 2:12 pm
  • 100 Years Since the Principia Mathematica
    by xcthulhu » November 26th, 2010, 12:54 pm
    3 Comments
    1484 Views
    Last post by owleye View the latest post
    November 26th, 2010, 10:39 pm
  • Introduction to logic (harry j gensler)
    by erob89 » October 17th, 2010, 3:41 pm
    1 Comments
    1846 Views
    Last post by xcthulhu View the latest post
    October 17th, 2010, 6:25 pm
  • Circular logic?
    by Aodhan » September 26th, 2010, 2:14 am
    21 Comments
    5618 Views
    Last post by xcthulhu View the latest post
    October 13th, 2010, 12:15 pm
  • Is this a legitimate refutation of the Russell paradox?
    by Aodhan » October 5th, 2010, 1:38 am
    2 Comments
    1141 Views
    Last post by xcthulhu View the latest post
    October 12th, 2010, 5:20 pm
  • Beginners books
    by Celun » July 3rd, 2010, 1:10 am
    2 Comments
    1278 Views
    Last post by Fredd View the latest post
    September 2nd, 2010, 10:36 am
  • What is the point of formal logic?
    by MightyMystic » April 29th, 2010, 9:33 pm
    11 Comments
    15483 Views
    Last post by Fredd View the latest post
    August 31st, 2010, 5:43 am
  • Argument for occasionalism
    by Joshimitsu » August 18th, 2010, 6:17 am
    28 Comments
    9712 Views
    Last post by Joshimitsu View the latest post
    August 24th, 2010, 3:56 pm
  • Can movement "begin to exist"?
    by Joshimitsu » August 12th, 2010, 7:20 am
    19 Comments
    4258 Views
    Last post by neuro View the latest post
    August 14th, 2010, 2:28 pm
  • What are the drawbacks of logic?
    by notsure7 » June 28th, 2010, 1:55 am
    9 Comments
    3080 Views
    Last post by reconsiderate View the latest post
    August 6th, 2010, 12:10 pm
  • Gambling Betting Strategy
    by DaMadScientist » June 29th, 2010, 9:43 am
    0 Comments
    942 Views
    Last post by DaMadScientist View the latest post
    June 29th, 2010, 9:43 am
  • Fast Counting
    by jshort » January 13th, 2010, 12:00 am
    8 Comments
    2434 Views
    Last post by jshort View the latest post
    May 29th, 2010, 8:29 pm
  • derivations
    by Lynx » March 31st, 2010, 1:21 am
    1 Comments
    1311 Views
    Last post by xcthulhu View the latest post
    April 29th, 2010, 2:36 am
  • Eternity
    by uzza » January 15th, 2010, 7:32 am
    3 Comments
    1328 Views
    Last post by owleye View the latest post
    February 19th, 2010, 8:54 pm
  • Representation (in the philosophy of math)
    by linford86 » February 18th, 2010, 2:08 pm
    0 Comments
    942 Views
    Last post by linford86 View the latest post
    February 18th, 2010, 2:08 pm
  • Failed Proofs
    by xcthulhu » January 13th, 2010, 7:00 pm
    3 Comments
    2505 Views
    Last post by linford86 View the latest post
    January 23rd, 2010, 3:09 pm
  • Löb's Theorem - A Crazy Theorem
    by xcthulhu » January 18th, 2010, 4:53 am
    1 Comments
    3882 Views
    Last post by xcthulhu View the latest post
    January 18th, 2010, 6:26 am
  • What is model theory?
    by jimmy123 » May 20th, 2009, 1:14 am
    10 Comments
    4882 Views
    Last post by xcthulhu View the latest post
    December 31st, 2009, 12:31 am
  • Advanced ATP techniques
    by RiseOfMachines » December 19th, 2009, 9:19 am
    3 Comments
    1615 Views
    Last post by RiseOfMachines View the latest post
    December 27th, 2009, 12:01 am
  • Existence as a predicate
    by linford86 » December 12th, 2009, 7:10 pm
    13 Comments
    3894 Views
    Last post by xcthulhu View the latest post
    December 25th, 2009, 11:26 am
  • Modality and Consequence
    by Achilles » December 20th, 2009, 11:51 am
    1 Comments
    992 Views
    Last post by kenosis View the latest post
    December 23rd, 2009, 11:50 am
  • Hilbert's Epsilon Operator, Platonism, etc...
    by linford86 » December 9th, 2009, 3:34 pm
    2 Comments
    1403 Views
    Last post by linford86 View the latest post
    December 13th, 2009, 11:03 pm
  • HOL Light
    by RiseOfMachines » November 10th, 2009, 8:15 am
    2 Comments
    1073 Views
    Last post by RiseOfMachines View the latest post
    November 11th, 2009, 12:16 pm
  • What is a proposition?
    by jimmy123 » May 17th, 2009, 6:59 pm
    14 Comments
    6013 Views
    Last post by error404 View the latest post
    November 3rd, 2009, 2:56 pm
  • Intro to fallacious logic
    by poof » October 31st, 2009, 1:10 am
    1 Comments
    907 Views
    Last post by kudayta View the latest post
    October 31st, 2009, 4:30 am
  • "want to" to "wanna"
    by wot1990 » August 8th, 2009, 2:16 am
    7 Comments
    2894 Views
    Last post by xcthulhu View the latest post
    October 25th, 2009, 10:03 am
  • Logic Advice
    by xcthulhu » October 17th, 2009, 12:12 pm
    3 Comments
    2867 Views
    Last post by EponAnon View the latest post
    October 18th, 2009, 11:20 am
  • More on first-order syntactical monsters?
    by RiseOfMachines » August 24th, 2009, 3:24 am
    5 Comments
    1641 Views
    Last post by RiseOfMachines View the latest post
    August 25th, 2009, 2:24 am
  • Definition types
    by jshort » August 5th, 2009, 11:36 pm
    10 Comments
    2631 Views
    Last post by jshort View the latest post
    August 13th, 2009, 11:37 pm
  • Determinism
    by jshort » August 3rd, 2009, 2:32 pm
    19 Comments
    4942 Views
    Last post by jshort View the latest post
    August 13th, 2009, 8:36 pm
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