Descartes' Ontological Argument

Paper Summary:

This paper first outlines Descartes? argument for the existence of God as set forth in Meditation V. The writer then addresses the two most prominent objections to this argument: First, Kant?s objection that Descartes' argument is valid but unsound because it contains a false premise, and second, Caterus? objection that the argument is invalid because the conclusion does not logically follow the premises.

From the Paper:

"Having established that clear and distinct perceptions are true, Descartes then asserts that he has a clear and distinct perception of God. ?Clearly the idea of God, that is, the idea of a supremely perfect being, is one I discover to be no less within me than the idea of any figure or number.? (M., 368) Additionally, this perception of God includes the concept of existence. ?It is obvious to anyone who pays close attention that existence can no more be separated from God's essence than [a triangle] having three angles equal to two right angles, or that the idea of a valley can be separated from the idea of a mountain.? (M., 369) Descartes then combines this concept with his first premise to complete the argument. Since clear and distinct perceptions about the nature of a thing are true, and the idea of existence is inextricably linked with the idea of a God, Descartes concludes that a God must therefore exist."

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