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Extension and Psychic State: Twin Earth Revisited

John Campbell
Philosophical Studies: An International Journal for Philosophy in the Analytic Tradition
Vol. 42, No. 1 (Jul., 1982), pp. 67-89
Published by: Springer
Stable URL: http://www.jstor.org/stable/4319541
Page Count: 23
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Extension and Psychic State: Twin Earth Revisited
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