Liz asked:

According to solipsism how would I determine if another person has a mind or not?

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What other person?! The existence of anything other than solus ipse(the self alone) is doubtful to the
putative solipsist. Also, in so far as mentality is central to personhood, then the determination that
there is a mind is already built into the determination that there is another person.

Tony Flood

In no way. Solipsism is precisely the view that there are no minds other than one's own.

T. P. Uschanov

Research Assistant

Department of Philosophy

University of Helsinki

As a solipsist, I would determine whether an entity has a mind in exactly the same way as the
non-solipsist, namely from its speech and behaviour. The only difference between the solipsist and
the non-solipsist is that the solipsist says, "The mental states I attribute to others are not realmental
states, but only ways of describing behaviour." — The challenge is to make sense of that statement.

Geoffrey Klempner

Arguably the term 'I' presupposes 'the other(s)', therefore a solitary mind could not think about itself or
others.

Helene Dumitriu

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