Combining Texts

Ideas for 'Sweet Dreams', 'Lectures 1930-32 (student notes)' and 'Philosophy of Mathematics'

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3 ideas

10. Modality / A. Necessity / 6. Logical Necessity

10258

Logical modalities may be acceptable, because they are reducible to satisfaction in models [Shapiro]

10. Modality / C. Sources of Modality / 3. Necessity by Convention

18726

For each necessity in the world there is an arbitrary rule of language [Wittgenstein]

10. Modality / E. Possible worlds / 1. Possible Worlds / a. Possible worlds

10266

Why does the 'myth' of possible worlds produce correct modal logic? [Shapiro]