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Math Help - Proove this theorem via contradiction

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    Proove this theorem via contradiction

    if x+y>100 then x>50 or y>50
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    Re: Proove this theorem via contradiction

    Quote Originally Posted by omegatidus View Post
    if x+y>100 then x>50 or y>50
    Suppose that x\le50~\&~y\le 50 then x+y\le~?
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  3. #3
    GJA
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    Re: Proove this theorem via contradiction

    Start by assuming the negation of "x>50 or y>50." Then see if what you get somehow contradicts "x+y>100."

    If this is too cryptic let me know and I will be a bit more explicit. Good luck!
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