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Supremum w.r.t. 2 parameters

  1. Jun 17, 2013 #1
    Can I do this:

    sup_(x,y) f(x,y) = sup_y sup_x f(x,y) ?
  2. jcsd
  3. Jun 17, 2013 #2


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  4. Jun 17, 2013 #3
    Great thanks for quick reply!
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