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Essay about Descartes’ Argument from Divisibility

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Descartes’ Argument from Divisibility Works Cited Missing Reneì Descartes’ treatise on dualism, his Meditations on First Philosophy, is a seminal work in Western intellectual history, outlining his theory of the mind and its relation to the rest of the world. The main argument running through the Meditations leads from his universal methodic doubt through his famous cogito, to proofs of dualism, God, and the world. The Cartesian dualism is one of the most influential ideas to come out of the work; the style of the Meditations, however, is one of personal rumination, following what appears to be Descartes’ stream of consciousness , and it allows for mild tangential discussions. Hence alongside his more famous argument for dualism, …show more content…

Stated in this way the argument is valid, but for it to be sound we must be able to accept all of its premises. The first premise is uncontroversial, as it follows from the concept of numerical identity that if two things are numerically identical then anything that is true of one is true of the other, as both things are actually only one thing being referred to in two different ways. We can therefore accept it as true. Moving to the second premise, it should be noted that physical bodies may not, in fact, be infinitely divisible, but as they are still divisible to some extent, this does not invalidate the argument and is only a tangential concern. At any rate, that material bodies are divisible seems almost self evident. The third premise is really the crux of the argument and the point of uncertainty. Is the mind really indivisible? Upon initial reflection it would certainly seem so; Descartes’ claim that one cannot conceive of “half of a mind” seems intuitively true on the face of it. However, one must remember that by “mind” Descartes meant only “a thing that thinks” (Meditations, p. 20), which is to say that thinking is the essence of the mind. From this kernel of truth Descartes builds up the rest of his understanding of the mind and part of this understanding is that the mind is entirely accessible to itself and in this sense is one unified thing. However, today the

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