Combining Texts

Ideas for 'Metaphysics', 'On the Notion of Cause' and 'fragments/reports'

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3 ideas

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

12611

Necessity makes alternatives impossible [Aristotle]

8375	'Necessary' is a predicate of a propositional function, saying it is true for all values of its argument [Russell]

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

17852

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