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Ideas for 'Physics', 'Truth, Correspondence, Explanation and Knowledge' and 'Enquiry concerning Principles of Morals'

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7. Existence / A. Nature of Existence / 4. Abstract Existence

5105	The incommensurability of the diagonal always exists, and so it is not in time [Aristotle]
	Full Idea: The incommensurability of the diagonal always exists, and so it is not in time.
	From: Aristotle (Physics [c.337 BCE], 221b36)
	A reaction: This must make Aristotle sympathetic to Platonism in mathematics, even though he rejects the full theory of Forms. Such a view is not uncommon among modern philosophers. Presumably the incommensurability is true in all possible worlds? 'In'?