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Math Help - Rules for negating?

  1. #1
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    Rules for negating?

    What are rules for negating stuff like -->, ^, and v.

    Say its negate(p --> q)

    What do we do in this situation?


    Say its negate(p ^ q)

    What do we do in this situation?


    Say its negate(p v q)

    What do we do in this situation?


    I'm confused when to flip stuff around etc.
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  2. #2
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    Re: Rules for negating?

    Quote Originally Posted by kmjt View Post
    What are rules for negating stuff like -->, ^, and v.
    \begin{array}{*{20}c}{\neg \left( {p \to q} \right)} &  \equiv  & {p \wedge \neg q}  \\   {\neg \left( {p \wedge q} \right)} &  \equiv  & {\neg p \vee \neg q}  \\   {\neg \left( {p \vee q} \right)} &  \equiv  & {\neg p \wedge \neg q}  \\ \end{array}
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