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Math Help - Equivalence with logic laws

  1. #1
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    Equivalence with logic laws

    Hey guys I got question regarding Logic Laws

    Question: Use the laws of logic to determine whether:
     \sim ( \sim p \vee q) \equiv (p \wedge q) ?

    My working out:

    <br />
 \sim (  \sim p \vee q) [Given]
    \equiv ( p \wedge  \sim q) [DeMorgan]

    Therefore its not equivalent. Am I correct here? thank you.
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  2. #2
    Member
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    Jan 2009
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    Yeah, they're not equivalent.
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