Definition
In philosophy, specifically in the area of metaphysics, counterpart theory is an alternative to standard (Kripkean) possible-worlds semantics for interpreting quantified modal logic. Counterpart theory still presupposes possible worlds, but differs in certain important respects from the Kripkean view. The form of the theory most commonly cited was developed by David Lewis, first in a paper and later in his book On the Plurality of Worlds.
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A priori and a posterioriDavid Lewis (philosopher)De reEdward N. ZaltaEmpirical evidenceEndurantismGenidentityHaecceityHermann MinkowskiHubert HumphreyI-relationIdentity (philosophy)Identity (social science)Immanuel KantIndividual essenceKeith Campbell (philosopher)Kit FineKnowledge of modal intuitionsLogical truthMany-worlds interpretationMereological sumMereologyMetaphysicsModal logicModal realismModifiersNuclear fissionOn the Plurality of WorldsParadox of analysisPerdurantismPeter van InwagenPhilPapersPhilosophyPlanetPossible worldReflexive relationRigid designatorsRudolf CarnapRuth Barcan MarcusSaul KripkeSpacetimeStanford Encyclopedia of PhilosophyStorkSupervenienceSymmetric relationTed SiderTemporal partsThe paradox of coincidenceThe paradox of material coincidenceTheory of relativityTransitive relationTruth conditionUnity relationUniversalsUnrestricted mereological compositionVenus
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