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  • Suppose there is a island with just one male barber. On this island, every man keeps himself clean-shaven by doing only one of two things:
    Shaving himself, or
    going to the barber.

    Another way to state this is:
    The barber shaves all and only those men on the island who do not shave themselves.

    All this seems perfectly logical, until we pose the paradoxical question:
    Who shaves the barber?

    He shaves himself.

    It's equivocation.

    This line is faulty: "The barber shaves all and only those men on the island who do not shave themselves." - it needs 'and himself" adding to it.

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