Combining Texts

All the ideas for 'Isagoge ('Introduction')', 'Anselm and Actuality' and 'Possible Worlds and Necessary A Posteriori'

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6 ideas

4. Formal Logic / D. Modal Logic ML / 4. Alethic Modal Logic

16456

For modality Lewis rejected boxes and diamonds, preferring worlds, and an index for the actual one [Lewis, by Stalnaker]

8. Modes of Existence / D. Universals / 1. Universals

15034

Are genera and species real or conceptual? bodies or incorporeal? in sensibles or separate from them? [Porphyry]

9. Objects / D. Essence of Objects / 9. Essence and Properties

14633

How do we tell a table's being contingently plastic from its being essentially plastic? [Jackson]

14635

An x is essentially F if it is F in every possible world in which it appears [Jackson]

9. Objects / D. Essence of Objects / 15. Against Essentialism

14632

Quine may have conflated de re and de dicto essentialism, but there is a real epistemological problem [Jackson]

10. Modality / D. Knowledge of Modality / 3. A Posteriori Necessary

14631

How can you show the necessity of an a posteriori necessity, if it might turn out to be false? [Jackson]