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Math Help - laws of sets

  1. #1
    Super Member
    Joined
    Oct 2007
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    Santiago
    Posts
    517

    laws of sets

    hey guys just checking if my answer is correct,

    show that:  \overline{\overline{A} \cap {B}} = {A} \cup \overline{B} using laws of sets.

    so: \Longrightarrow \overline{\overline{A} \cap {B}} = \overline{\overline{A}} \cup \overline{B} = {A} \cup \overline{B}

    therefore:  \overline{\overline{A} \cap {B}} = {A} \cup \overline{B}

    thanks!
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  2. #2
    Newbie
    Joined
    Aug 2009
    Posts
    24
    its correct
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