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Math Help - logic sets

  1. #1
    Junior Member
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    logic sets

    anyone know the answers to these questions

    Explain how to use a formal proof

    Explain how to use a truth table

    thank you
    Last edited by srk619; November 19th 2008 at 10:30 AM.
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  2. #2
    Senior Member
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    One way to show that a set of statement is inconsistent with formal proof is to prove (P\wedge \neg P).

    With a truth table, that would be to show that you can't satisfy every statement at the same time.

    But of what kind of language are you talking about here?
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