Combining Philosophers

Ideas for H.Putnam/P.Oppenheim, Richard T.W. Arthur and Ren Descartes

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7. Existence / C. Structure of Existence / 5. Supervenience / c. Significance of supervenience

3644	Two things being joined together doesn't prove they are the same [Descartes]
	Full Idea: The fact that we often see two things joined together does not license the inference that they are one and the same.
	From: René Descartes (Reply to Sixth Objections [1641], 444)
	A reaction: Correct. The problem comes when they are never ever apart, and you begin to suspect that they are conjoined in all possible worlds. Why might this be so? It can only be identity or a causal link.