In a certain small town, there is a barber named Bill. Since Bill is the only barber in the town, he decides that he will shave all the town's residents who do not shave themselves, but (obviously) not the ones who do.
If Bill follows this rule, will he shave himself or not?
That is the reason this problem is in the "paradox" category. If he shaves himself, he shaves someone who shaves himself, which violates the second part of his rule, but if he does not shave himself, there is someone who does not shave himself and is not shaved by Bill, violating the first part.
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Posted by TomM
on 2002-05-14 12:39:05 |