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Is solipsism inevitably self-defeating?

Solipsism is sometimes defined as the claim that one’s mind is the only thing that exists, and sometimes that it is the only mind that exists. There is a world of difference between the two, but arguments rebutting the latter rebut the former also, though further steps are required to show that the other minds thus shown to exist are not the only things that exist.

Treated as a version of other-minds scepticism, solipsism is vulnerable to a beautiful line of argument proposed by PF Strawson, as follows. To doubt the existence of other minds, a…

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