Greetings all,

This coming Monday, Jamie Dreier (Brown) will talk to us about "A Failure of Modus Ponens". Philosophy common room, 1.00-2.30.

An argument due to Shakespeare demonstrates how modus ponens can fail when embedded within or-elimination (or reductio ad absurdum). I start with Shakespeare’s example, from a scene in King Henry V, involving conditional evaluations. A second example involves conditional probabilities, with no evaluations. I canvas alternatives to rejecting modus ponens, and offer my own diagnosis.


For further information see the current projects website at

http://homepage.mac.com/centre.for.time/KristieMiller/Kristie/Home_Page.html


Dr. Kristie Miller
University of Sydney Research Fellow
School of Philosophical and Historical Inquiry and
The Centre for Time
The University of Sydney
Sydney Australia
Room 411, A 18

[email protected]
[email protected]
Ph: 02 93569663
http://homepage.mac.com/centre.for.time/KristieMiller/Kristie/Home_Page.html





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