philosophy 10-26

philosophy 10-26 - Conceivability entails possibility: if...

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10/26 The Cogito Judgment Question: so is Descartes making the following inference? I doubt, therefore I think, therefore I am. “I think, I am.” – a statement Descartes Mind and Body What am I essentially? (properties) Essential property: property F is an essential property of X if and only if it is necessary that if exists, then X has F I am essentially a thinking thing. There is no way possible for the world to be such that I exist, but fail to be a thinking thing. Am I also essentially an extended thing? Am I essentially a material thing? Material things are essentially extended Wax example: none of the properties are essential to wax, except for extension Descartes uses E.G. to demonstrate distinction of mind and body.
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Unformatted text preview: Conceivability entails possibility: if it is conceivable that P, then it is possible that P. • The Existence Principle (EP): for all X and for all Y, if X=Y, then X exists if Y exists • As the EG scenario illustrates, it is conceivable that I exist, but fail to be extended, Thus it is possible that I exists, but fail to be extended • So I'm not essentially extended. So I do not have my body essentially. • BUT, I am essentially a thinking thing. SO, I have a mind essentially. SO it is possible that my mind exists but my body doesn't. SO my mind is distinct from my body. • The Conceivability Argument • 1. It is conceivable t. .............
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This note was uploaded on 04/07/2008 for the course PHIL 1 taught by Professor Lewis during the Fall '08 term at UCSB.

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philosophy 10-26 - Conceivability entails possibility: if...

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