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Power set theory question

  1. Jan 26, 2012 #1
    1. The problem statement, all variables and given/known data
    Is this the right power set for x?

    2. Relevant equations

    3. The attempt at a solution
    P(x)={ø, {S}, {{S}}, {S,{S}}}
  2. jcsd
  3. Jan 26, 2012 #2


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    Science Advisor
    Homework Helper

    Yes, it is.
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