Combining Texts

All the ideas for 'Freedom and Action', 'Moral Relativism' and 'A Completeness Theorem in Modal Logic'

expand these ideas     |    start again     |     specify just one area for these texts

---

9 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]

12. Knowledge Sources / B. Perception / 5. Interpretation

22449

When we say 'is red' we don't mean 'seems red to most people' [Foot]

20. Action / A. Definition of Action / 1. Action Theory

20062

If a desire leads to a satisfactory result by an odd route, the causal theory looks wrong [Chisholm]

20. Action / B. Preliminaries of Action / 2. Willed Action / c. Agent causation

20054

There has to be a brain event which is not caused by another event, but by the agent [Chisholm]

22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / e. Ethical cognitivism

22451

All people need affection, cooperation, community and help in trouble [Foot]

22. Metaethics / B. Value / 1. Nature of Value / f. Ultimate value

22452

Do we have a concept of value, other than wanting something, or making an effort to get it? [Foot]