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Ideas for '', 'On 'Insolubilia' and their solution' and 'Naming and Necessity preface'

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2 ideas

4. Formal Logic / D. Modal Logic ML / 1. Modal Logic

16985

Possible worlds allowed the application of set-theoretic models to modal logic [Kripke]

4. Formal Logic / F. Set Theory ST / 5. Conceptions of Set / c. Logical sets

21563

The 'no classes' theory says the propositions just refer to the members [Russell]