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Thread: Set question 2

  1. #1
    Junior Member Researcher's Avatar
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    Sep 2009
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    Set question 2

    Interpret the expresion: $\displaystyle \phi =${$\displaystyle x : x \neq x$}
    Why is the principle of duality always true?

    Why $\displaystyle A \oplus ( B \oplus C ) = ( A \oplus B ) \oplus C$ ?
    Last edited by Researcher; Sep 6th 2009 at 06:00 AM.
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