Combining Philosophers
Ideas for Archimedes, H.L.A. Hart and Penelope Mackie
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7 ideas
9. Objects / D. Essence of Objects / 1. Essences of Objects
11889
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Essentialism must avoid both reduplication of essences, and multiple occupancy by essences [Mackie,P]
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9. Objects / D. Essence of Objects / 3. Individual Essences
11877
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An individual essence is the properties the object could not exist without [Mackie,P]
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11882
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No other object can possibly have the same individual essence as some object [Mackie,P]
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11886
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There are problems both with individual essences and without them [Mackie,P]
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9. Objects / D. Essence of Objects / 5. Essence as Kind
11909
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Unlike Hesperus=Phosophorus, water=H2O needs further premisses before it is necessary [Mackie,P]
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11899
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Why are any sortals essential, and why are only some of them essential? [Mackie,P]
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9. Objects / D. Essence of Objects / 8. Essence as Explanatory
11906
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The Kripke and Putnam view of kinds makes them explanatorily basic, but has modal implications [Mackie,P]
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