Combining Philosophers

Ideas for Xenophon, Plotinus and Penelope Mackie

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7 ideas

9. Objects / D. Essence of Objects / 1. Essences of Objects

11889

Essentialism must avoid both reduplication of essences, and multiple occupancy by essences [Mackie,P]

9. Objects / D. Essence of Objects / 3. Individual Essences

11877

An individual essence is the properties the object could not exist without [Mackie,P]

11882

No other object can possibly have the same individual essence as some object [Mackie,P]

11886

There are problems both with individual essences and without them [Mackie,P]

9. Objects / D. Essence of Objects / 5. Essence as Kind

11909

Unlike Hesperus=Phosophorus, water=H2O needs further premisses before it is necessary [Mackie,P]

11899

Why are any sortals essential, and why are only some of them essential? [Mackie,P]

9. Objects / D. Essence of Objects / 8. Essence as Explanatory

11906

The Kripke and Putnam view of kinds makes them explanatorily basic, but has modal implications [Mackie,P]