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Ideas for 'Metaphysics: the logical approach', 'Review of Frege's 'Grundlagen'' and 'The Question of Ontology'

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2 ideas

6. Mathematics / B. Foundations for Mathematics / 5. Definitions of Number / c. Fregean numbers

9992	The 'extension of a concept' in general may be quantitatively completely indeterminate [Cantor]

12215

The existence of numbers is not a matter of identities, but of constituents of the world [Fine,K]