Comments on: An Introduction to Modal Logic http://www.thadguy.com/comic/an-introduction-to-modal-logic/122/ Fri, 08 Jul 2011 15:45:53 +0000 hourly 1 http://wordpress.org/?v=3.1 By: james http://www.thadguy.com/comic/an-introduction-to-modal-logic/122/comment-page-1/#comment-86016 james Sun, 07 Sep 2008 17:27:19 +0000 http://www.thadguy.com/comic/an-introduction-to-modal-logic/122/#comment-86016 (3) does not follow from (1) and (2) and thus your attempt at discrediting modal logic is clearly fallacious. Given (1) and (2) you can only conclude that "it is possible that prince edward is the most common entity on prince edward island" but not that "prince edward is the most common entity on prince edward island." and surely, being that we are not dealing with a necessary truth here, it is indeed possible that in some possible world prince edward is the most common entity on prince edward island, however based on prior knowledge from our actual world we know this is not the case. (3) does not follow from (1) and (2) and thus your attempt at discrediting modal logic is clearly fallacious. Given (1) and (2) you can only conclude that “it is possible that prince edward is the most common entity on prince edward island” but not that “prince edward is the most common entity on prince edward island.” and surely, being that we are not dealing with a necessary truth here, it is indeed possible that in some possible world prince edward is the most common entity on prince edward island, however based on prior knowledge from our actual world we know this is not the case.

]]> By: Babu http://www.thadguy.com/comic/an-introduction-to-modal-logic/122/comment-page-1/#comment-53505 Babu Mon, 14 Jan 2008 03:36:55 +0000 http://www.thadguy.com/comic/an-introduction-to-modal-logic/122/#comment-53505 Um, "it is possible that" does not entail "it is that". Invalid. Um, “it is possible that” does not entail “it is that”. Invalid.

]]> By: Thad http://www.thadguy.com/comic/an-introduction-to-modal-logic/122/comment-page-1/#comment-481 Thad Tue, 10 Jul 2007 14:28:41 +0000 http://www.thadguy.com/comic/an-introduction-to-modal-logic/122/#comment-481 If you like this comic you might also enjoy: http://www.thadguy.com/comic/an-introduction-to-unchallengable-statistics/172/ If you like this comic you might also enjoy:

http://www.thadguy.com/comic/an-introduction-to-unchallengable-statistics/172/

]]> By: Tales of Modernity - All philosophy is a footnote to Plato (and Aristotle!) http://www.thadguy.com/comic/an-introduction-to-modal-logic/122/comment-page-1/#comment-190 Tales of Modernity - All philosophy is a footnote to Plato (and Aristotle!) Mon, 25 Jun 2007 17:03:37 +0000 http://www.thadguy.com/comic/an-introduction-to-modal-logic/122/#comment-190 [...] Guy presents An Introduction to Modal Logic commenting on his submission, “Plato and Aristotle have contributed many things to the [...] [...] Guy presents An Introduction to Modal Logic commenting on his submission, “Plato and Aristotle have contributed many things to the [...]

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