Combining Texts

Ideas for 'Metaphysics', 'Letters to Paul Pellison-Fontinier' and 'Thinking About Logic'

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3 ideas

10. Modality / A. Necessity / 2. Nature of Necessity

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Equating necessity with truth in every possible world is the S5 conception of necessity [Read]

12611

Necessity makes alternatives impossible [Aristotle]

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

17852

A thing has a feature necessarily if its denial brings a contradiction [Aristotle]