Combining Texts

All the ideas for 'fragments/reports', 'A Completeness Theorem in Modal Logic' and 'The Prince'

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12 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]

13. Knowledge Criteria / E. Relativism / 2. Knowledge as Convention

1556	By nature people are close to one another, but culture drives them apart [Hippias]

23. Ethics / B. Contract Ethics / 3. Promise Keeping

7127	If men are good you should keep promises, but they aren't, so you needn't [Machiavelli]

24. Political Theory / B. Nature of a State / 3. Constitutions

6309	The principle foundations of all states are good laws and good armies [Machiavelli]

24. Political Theory / C. Ruling a State / 2. Leaders / c. Despotism

6306	People are vengeful, so be generous to them, or destroy them [Machiavelli]

6305	To retain a conquered state, wipe out the ruling family, and preserve everything else [Machiavelli]

6308	A sensible conqueror does all his harmful deeds immediately, because people soon forget [Machiavelli]

25. Social Practice / E. Policies / 1. War / a. Just wars

6307	A desire to conquer, and men who do it, are always praised, or not blamed [Machiavelli]

25. Social Practice / E. Policies / 2. Religion in Society

7486	Machiavelli emancipated politics from religion [Machiavelli, by Watson]