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Math Help - prove the set is uncountable

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    prove the set is uncountable

    How does one prove that the following set A=:\{(x,x)|x\in[0,1]\}\subset[0,1]\times[0,1] has Lebesque measure =0???
    Last edited by rayman; September 23rd 2013 at 10:49 AM.
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    Re: prove the set is uncountable

    To be erased by moderator.
    Last edited by rayman; September 23rd 2013 at 11:12 AM.
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