Combining Texts

All the ideas for 'That Politics may be reduced to a Science', 'Psychophysical and theoretical identifications' and 'A Completeness Theorem in Modal Logic'

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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]
23. Ethics / C. Virtue Theory / 4. External Goods / d. Friendship
21093 Friendship without community spirit misses out on the main part of virtue [Hume]
24. Political Theory / B. Nature of a State / 3. Constitutions
21091 It would be absurd if even a free constitution did not impose restraints, for the public good [Hume]
24. Political Theory / C. Ruling a State / 2. Leaders / d. Elites
21092 Nobility either share in the power of the whole, or they compose the power of the whole [Hume]
26. Natural Theory / D. Laws of Nature / 4. Regularities / b. Best system theory
9409 Laws are the best axiomatization of the total history of world events or facts [Lewis, by Mumford]
9423 If simplicity and strength are criteria for laws of nature, that introduces a subjective element [Mumford on Lewis]
9424 A number of systematizations might tie as the best and most coherent system [Mumford on Lewis]