Combining Philosophers
Ideas for Peter Geach, Jean Calvin and Tim Mawson
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5 ideas
9. Objects / A. Existence of Objects / 6. Nihilism about Objects
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We should abandon absolute identity, confining it to within some category [Geach, by Hawthorne]
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9. Objects / F. Identity among Objects / 3. Relative Identity
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Denial of absolute identity has drastic implications for logic, semantics and set theory [Wasserman on Geach]
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12152
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Identity is relative. One must not say things are 'the same', but 'the same A as' [Geach]
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9. Objects / F. Identity among Objects / 8. Leibniz's Law
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Leibniz's Law is incomplete, since it includes a non-relativized identity predicate [Geach, by Wasserman]
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9. Objects / F. Identity among Objects / 9. Sameness
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Being 'the same' is meaningless, unless we specify 'the same X' [Geach]
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