|Decision theory: is not about decidability of problems within finite time, but about the consequences of decisions. See also rationality, actions, consequentialism, consequence, practical inference, decidability, counterfactual conditionals.|
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|Decision Theory||V 307f
Decision Theory/DT/Lewis: partition/Division)/ET/Lewis: (see above) is a set of propositions, of which exactly one applies in each world (or each X-world) - provide the most detailed specification of the present actions (options) of the actor - Decision theory: says which options are rational - rational choice: delivers the greatest benefit expected - maximum benefit: if V(A) is not surpassed by any V(A™) - problem: how do you find out that A applies - that one is living in the world A (= Proposition)? - Important argument: it is in your power, to make the news yourself - that is, you find out what they like best by producing it.
Non-Causal Decision Theory/Newcomb’s Paradox/NP/LewisVs: favors the rejection of small goods as rational - although this later choice does nothing to change the previous state, which favors the evil - Newcomb's Paradox: requires a causal decision theory.
Non-causal decision theory: only works, because the beliefs of the actor allow it to function - ... + ... Partition of propositions (sets of possible worlds), expected benefits.
Schwarz I 66
Decision-making procedure/Lewis: the modal realism is not a decision-making procedure to answer questions about possible worlds. Decision-making procedure/Schwarz: E.g. is not used by behaviorists either: he simply says that statements about mental properties are reducible to statements about dispositions - E.g. mathematical Platonism: does not need decision-making procedure for arithmetics.
Die Identität von Körper und Geist Frankfurt 1989
Konventionen Berlin 1975
Philosophical Papers Bd I New York Oxford 1983
Philosophical Papers Bd II New York Oxford 1986
Cl. I. Lewis
Mind and the World Order: Outline of a Theory of Knowledge (Dover Books on Western Philosophy) 1991
David Lewis Bielefeld 2005