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Math Help - [ASK] Logic Prooving

  1. #1
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    [ASK] Logic Prooving

    Show that these statement about real number x are equivalent (i) x is rational
    (ii) x/2 is rational (iii) 3x-1 is rational.

    What method that can be used to prove that?
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  2. #2
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    Quote Originally Posted by inggar1618 View Post
    Show that these statement about real number x are equivalent (i) x is rational
    (ii) x/2 is rational (iii) 3x-1 is rational.

    What method that can be used to prove that?
    Try 1 => 2 => 3 => 1
    This way you would show that all three are equivalent.
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  3. #3
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    thx very much..
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