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Kings and Prisoners (and Aces)

Published online by Cambridge University Press:  28 February 2022

Jordan Howard Sobel*
Affiliation:
University of Toronto

Extract

What we make of information we come to have should take into account that we have come to have it, and how we think we have come to have it

I relate this homily to several puzzles. In one, three cards, of which I know one is a king, lie face-down. After I select, without inspecting, a card and bet that it is a king, you reveal that a certain other card is not a king. I wonder what this does to my chances on that bet. In another puzzle I am one of three prisoners and learn that one of us will be released. Then I learn that a certain other prisoner will not be released. Again I wonder what this does to my chances.

Type
Part VI. Decision Theory
Copyright
Copyright © 1992 by the Philosophy of Science Association

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