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Math Help - Truth Table: Logic & Reasoning

  1. #1
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    Truth Table: Logic & Reasoning

    Hi there. I am hoping someone can at least point me in the right direction.

    How would I begin to go about composing a truth table to find out the logic (or lack thereof) of this statement:

    If the following are true: a is necessary for x, b is necessary for x and c is necessary for x.

    How would you compose a table for statement saying that a and b are necessary for x, but c is not necessary for x?

    I know this is probably not very clear and just hope this even remotely makes sense to someone!

    TIA!
    Jen
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  2. #2
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    Don't take my word for it, because I am not too good at math, but perhaps necessity means implication?

    i.e. =>, <=

    Hopefully if I'm wrong, it will start some discussion to get you to the write answer!
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  3. #3
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    Yes, if I remember correctly the later statement does not imply the original statement or something to that effect. Hopefully there will be more response though.

    Thank you, inthedl!
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