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Subsets and sets symbol explenation (Very simple question please have a look)

  1. Aug 27, 2012 #1
    1. The problem statement, all variables and given/known data
    Hi
    I would like you please to look my attachement ,and explain to me the meaning of the line above M and N whats the meaning of this line?It seems to me that it acts as we should take the complementary collection of numbers .


    2. Relevant equations



    3. The attempt at a solution
     

    Attached Files:

  2. jcsd
  3. Aug 27, 2012 #2

    micromass

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    Yes, you are probably right. The notation [itex]\overline{N}[/itex] just means all the elements which are not in N.
     
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