Combining Texts

All the ideas for 'The Epistemology of Modality', 'A Completeness Theorem in Modal Logic' and 'The Trouble with Possible Worlds'

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11 ideas

2. Reason / B. Laws of Thought / 6. Ockham's Razor
15787 Maybe Ockham's Razor is a purely aesthetic principle [Lycan]
15784 The Razor seems irrelevant for Meinongians, who allow absolutely everything to exist [Lycan]
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]
9. Objects / A. Existence of Objects / 4. Impossible objects
15792 Maybe non-existent objects are sets of properties [Lycan]
10. Modality / D. Knowledge of Modality / 4. Conceivable as Possible / a. Conceivable as possible
19440 How do you know you have conceived a thing deeply enough to assess its possibility? [Vaidya]
10. Modality / E. Possible worlds / 2. Nature of Possible Worlds / a. Nature of possible worlds
15795 Treating possible worlds as mental needs more actual mental events [Lycan]
15796 Possible worlds must be made of intensional objects like propositions or properties [Lycan]
10. Modality / E. Possible worlds / 2. Nature of Possible Worlds / c. Worlds as propositions
15794 If 'worlds' are sentences, and possibility their consistency, consistency may rely on possibility [Lycan]