Combining Texts

Ideas for 'Metaphysics', 'Remarks on axiomatised set theory' and 'Axiomatic Theories of Truth (2013 ver)'

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2 ideas

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

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Necessity makes alternatives impossible [Aristotle]

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

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