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Thread: laws of sets

  1. March 19th 2010, 08:17 PM #1
    jvignacio
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    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. March 20th 2010, 12:37 AM #2
    Julius
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    its correct
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