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3 ideas
22286 | Existence is not a first-level concept (of God), but a second-level property of concepts [Frege, by Potter] |
Full Idea: For Frege (unlike Kant) existence is a genuine concept, but of the second level, not the first. Since God's perfections are of the first level, existence is not a candidate to be one of them. | |
From: report of Gottlob Frege (Grundlagen der Arithmetik (Foundations) [1884], §053) by Michael Potter - The Rise of Analytic Philosophy 1879-1930 09 'App' | |
A reaction: That is, God's perfections are of God, but existence is a concept of concepts (that they are instantiated). So existence is a metaconcept. I'm not convinced. If I bake a successful cake, its existence is its most wonderful feature. |
8644 | Because existence is a property of concepts the ontological argument for God fails [Frege] |
Full Idea: Because existence is a property of concepts the ontological argument for the existence of God breaks down. | |
From: Gottlob Frege (Grundlagen der Arithmetik (Foundations) [1884], §53) | |
A reaction: The point being that existence (like number) is not a property of actual things. His proposition sounds rather dubious. The concept of unicorns exists quite entertainingly; it is the failure of actual unicorns to exist that is so heartbreaking. |
3634 | We can't prove a first cause from our inability to grasp infinity [Descartes] |
Full Idea: My inability to grasp an infinite chain of successive causes without a first cause does not entail that there must be a first cause, just as my inability to grasp infinite divisibility of finite things does not make that impossible. | |
From: René Descartes (Reply to First Objections [1641], 106) |