Are Full Beliefs an Abstraction from Credal States?


Isaac Levi

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Keywords: Full Belief, Serious Possibility, Confirmational Commitment, Credal Probability, Probability Logic.


Abstract
: Peter Gärdenfors has argued that states of full belief or certainty ought to be derived from states of credal probability judgment. I argue that when speaking of change of view, states of full belief ought to be able to vary separately from probability judgment. I explain how resorting to confirmational commitments enables us to represent credal states as determined by two separably variable components.


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Isaac Levi,
levi@columbia.edu
Columbia University


Spinning Ideas, Electronic Essays
Dedicated to Peter Gärdenfors on His Fiftieth Birthday