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Ideas for 'Function and Concept', 'The Scientific Image' and 'Lecture on Applicability of Mathematics'

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28. God / B. Proving God / 2. Proofs of Reason / b. Ontological Proof critique

8491	The Ontological Argument fallaciously treats existence as a first-level concept [Frege]
	Full Idea: The ontological proof of God's existence suffers from the fallacy of treating existence as a first-level concept.
	From: Gottlob Frege (Function and Concept [1891], p.38 n)
	A reaction: [See Idea 8490 for first- and second-order functions] This is usually summarised as the idea that existence is a quantifier rather than a predicate.