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Bell’s Theorem

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[Revised entry by Wayne Myrvold, Marco Genovese, and Abner Shimony on March 13, 2019. Changes to: Main text, Bibliography, notes.html] Bell's Theorem is the collective name for a family of results, all of which involve the derivation, from a condition on probability distributions inspired by considerations of local causality, together with auxiliary assumptions usually thought of as mild side-assumptions, of probabilistic predictions about the results of spatially separated experiments that conflict, for appropriate choices of quantum states and experiments, with quantum mechanical predictions. These probabilistic predictions take the form of...

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News source: Stanford Encyclopedia of Philosophy

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