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De morgan's set laws

  1. Jun 20, 2010 #1
    hi i just need a simple yet uncomplicated proof for

    (A UNION B)'S COMPLIMENTARY=A' INTERSECTION B'
     
  2. jcsd
  3. Jun 20, 2010 #2
    http://planetmath.org/encyclopedia/DeMorgansLawsProof.html [Broken]
     
    Last edited by a moderator: May 4, 2017
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