General Dynamic Triviality Theorems
نویسنده
چکیده
We have three goals in this paper. In Sections 1–3, we generalize Lewis’s results to apply to a wide variety of other principles that have a similar flavor—principles about epistemic “might”, probability claims, and claims about comparative value, including the last two in the list above. In Sections 4–5, we show how to streamline these arguments in a more minimalistic framework, which doesn’t depend on standard conditionalization or numerical probabilities. Instead, the arguments turn on structural principles about updating with new information—namely, that updates are commutative in the sense that the order of information doesn’t matter, and idempotent in the sense that repeatedly updating on the same information is redundant.1 In Section 7, we explore the prospects for maintaining some or all of the problematic principles by giving up these structural principles about update, drawing
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تاریخ انتشار 2016