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Ideas for 'fragments/reports', 'Inquiry Concerning Virtue or Merit' and 'Letters to Russell'

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9. Objects / A. Existence of Objects / 2. Abstract Objects / c. Modern abstracta

18269	Logical objects are extensions of concepts, or ranges of values of functions [Frege]
	Full Idea: How are we to conceive of logical objects? My only answer is, we conceive of them as extensions of concepts or, more generally, as ranges of values of functions ...what other way is there?
	From: Gottlob Frege (Letters to Russell [1902], 1902.07.28), quoted by J. Alberto Coffa - The Semantic Tradition from Kant to Carnap 7 epigr
	A reaction: This is the clearest statement I have found of what Frege means by an 'object'. But an extension is a collection of things, so an object is a group treated as a unity, which is generally how we understand a 'set'. Hence Quine's ontology.