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Ideas for 'Metaphysics', 'Grundlagen der Arithmetik (Foundations)' and 'works'

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4 ideas

28. God / B. Proving God / 1. Proof of God
For Aristotle God is defined in an axiom, for which there is no proof [Aristotle, by Frede,M]
     Full Idea: Aristotle is committed to the view that strictly speaking there is no proof of the essence and existence of God. There will be a real definition of him as an axiom of special theology, and then a deduction of theological theorems.
     From: report of Aristotle (Metaphysics [c.324 BCE], God) by Michael Frede - Aristotle's Conception of Metaphysics p.94
     A reaction: The cynical response would be 'why not start with a Great White Rabbit, then?', but I presume one must read what Aristotle says (late in 'Metaphysics') to understand why this particular axiom is chosen. Economy, power etc.?
28. God / B. Proving God / 2. Proofs of Reason / b. Ontological Proof critique
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.
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.
28. God / B. Proving God / 3. Proofs of Evidence / b. Teleological Proof
The world can't be arranged at all if there is nothing eternal and separate [Aristotle]
     Full Idea: How is there to be an arrangement of the world at all, in the absence of something eternal, separable and permanent?
     From: Aristotle (Metaphysics [c.324 BCE], 1060a21)