Combining Texts
Ideas for
'The Philosophy of Philosophy', 'Mere Possibilities' and 'Philebus'
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3 ideas
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / a. Systems of modal logic
16468
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Non-S5 can talk of contingent or necessary necessities [Stalnaker]
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4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / b. Axiom of Extensionality I
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In modal set theory, sets only exist in a possible world if that world contains all of its members [Stalnaker]
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4. Formal Logic / G. Formal Mereology / 1. Mereology
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It seems absurd that seeing a person's limbs, the one is many, and yet the many are one [Plato]
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