counterpart theory

名词 n.

英文释义

名词 n.
  1. An alternative to standard possible worlds semantics in which an individual can exist in only one world, while other possible worlds contain (different) counterparts to that individual, and in which the modality operators (necessity, possibility) are replaced by quantifiers over possible worlds. uncountable
    — If counterpart theory calls for the rejection of some popular modal principles, that needn't worry us. But if it forces us to reject principles of the logic of identity and quantification, that is more serious.
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