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D Morggan law

  1. May 29, 2012 #1
    (a u b)'=a' u b'
  2. jcsd
  3. May 29, 2012 #2


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    Science Advisor

    Wrong: (a∪b)' = a'∩b'
  4. May 29, 2012 #3


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    Staff: Mentor

    Welcome to the PF.

    Please make an effort to ask clear questions when you start a thread here at the PF. It is not clear at all if you have a question, and what it would be. You did get a nice correction though.
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