Combining Texts

All the ideas for 'works', 'A Completeness Theorem in Modal Logic' and 'Many, but almost one'

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10 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]

7. Existence / D. Theories of Reality / 10. Vagueness / d. Vagueness as linguistic

15538

Semantic indecision explains vagueness (if we have precisifications to be undecided about) [Lewis]

9. Objects / B. Unity of Objects / 3. Unity Problems / b. Cat and its tail

15537

If cats are vague, we deny that the many cats are one, or deny that the one cat is many [Lewis]

9. Objects / B. Unity of Objects / 3. Unity Problems / e. Vague objects

15536

We have one cloud, but many possible boundaries and aggregates for it [Lewis]

19. Language / F. Communication / 6. Interpreting Language / c. Principle of charity

15539

Basic to pragmatics is taking a message in a way that makes sense of it [Lewis]

29. Religion / B. Monotheistic Religion / 4. Christianity / d. Heresy

16713

Philosophers are the forefathers of heretics [Tertullian]

29. Religion / D. Religious Issues / 1. Religious Commitment / e. Fideism

6610	I believe because it is absurd [Tertullian]