Combining Texts

All the ideas for 'Leibniz', 'A Completeness Theorem in Modal Logic' and 'Moral Luck'

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7 ideas

4. Formal Logic / D. Modal Logic ML / 1. Modal Logic

10163

Propositional modal logic has been proved to be complete [Kripke, by Feferman/Feferman]

4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / a. Systems of modal logic

10760

With possible worlds, S4 and S5 are sound and complete, but S1-S3 are not even sound [Kripke, by Rossberg]

4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula

16189

The variable domain approach to quantified modal logic invalidates the Barcan Formula [Kripke, by Simchen]

15132

The Barcan formulas fail in models with varying domains [Kripke, by Williamson]

9. Objects / F. Identity among Objects / 7. Indiscernible Objects

7566	The Identity of Indiscernibles is really the same as the verification principle [Jolley]

13. Knowledge Criteria / C. External Justification / 5. Controlling Beliefs

3271	We can't control our own beliefs [Nagel]

22. Metaethics / C. The Good / 1. Goodness / i. Moral luck

3272	Moral luck can arise in character, preconditions, actual circumstances, and outcome [Nagel]