Combining Texts

All the ideas for 'Recent Aesthetics in England and America', 'A Completeness Theorem in Modal Logic' and 'Frege'

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

---

7 ideas

4. Formal Logic / B. Propositional Logic PL / 1. Propositional Logic

7726	Aristotelian logic dealt with inferences about concepts, and there were also proposition inferences [Weiner]

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]

21. Aesthetics / A. Aesthetic Experience / 1. Aesthetics

12156

Aesthetics has risen and fallen with Romanticism [Scruton]

21. Aesthetics / A. Aesthetic Experience / 2. Aesthetic Attitude

12158

Aesthetic experience informs the world with the values of the observer [Scruton]