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Wed 20 Mar, 2013 12:59 pm
There is a man in a town that shaves all and only those that do not shave themselves. That is, this barber shaves x if and only if x does not shave x, for all x.
Does the barber shave himself?
@nabilbh32,
He does if it's his policy to shave anyone who hasn't shaved himself
@nabilbh32,
Quote:There is a man in a town that shaves all and only those that do not shave themselves. That is, this barber shaves x if and only if x does not shave x, for all x.
Does the barber shave himself?
No...The Barber does not shave himself...
X = The Barber...
That is, this barber shaves himself if and only if he does not shave himself, because he is not a barber...then he does not shave anyone else, nor himself either...
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