phi_lec_4

phi_lec_4 - inferring it from some premises Cogito v1 1 I...

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Lecture 4 – April 8, 2010 The Dream Argument Descartes rejects the dream argument: “The visions that come in sleep are like paintings…” The Cogito Latin: cogito, ergo sum English: I think, therefore I am Or: I think, therefore I exist The Cogito = the passage in the 2 nd meditation beginning with “Still, how do I know that there isn’t something… whenever I assert it or think it” 1. What is this “first certainty” which proposition is it that gets uncovered? a. I exist? b. If I think, then I exist? c. I think, therefore I exist? 2. What status does Descartes claim for it? 3. What reasons does he give for saying that it does have that status? Three interpretations of the Cogito The Inferential Interpretation: The truth he uncovers is (a), that he exists, and he becomes metaphysically certain of it by
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Unformatted text preview: inferring it from some premises Cogito v1 1. I am convinced that there is nothing in the world 2. If I am convinced that there is nothing in the world, then I exist---Therefore, I exist. Cogito v2 1. I am deceived by something 2. If I am deceived by something, then I exist---Therefore, I exist. Cogito v3 1. I think that I am something. 2. If I think that I am something, then I exist---Therefore, I exist Cogito v4 1. I think 2. Whatever thinks exists---Therefore, I exist Objection a) Inconsistency: The inferential interpretation says both (i) That the first certainty for D is that he exists, and (ii) That before he arrives at this certainty, he is already certain of two other propositions (premises (1) and (2))...
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This note was uploaded on 09/13/2011 for the course PHI 1 taught by Professor Glanzberg during the Spring '09 term at UC Davis.

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phi_lec_4 - inferring it from some premises Cogito v1 1 I...

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