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Thread: A question regarding Bertrand's postulate (Erdős proof)...

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    MHF Contributor Also sprach Zarathustra's Avatar
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    A question regarding Bertrand's postulate (Erdős proof)...

    Proof of Bertrand's postulate - Wikipedia, the free encyclopedia


    I don't understand why the product in red underline less than the product in the red box in the attachment.



    For the definition of R(p,n) please see the link.



    Thank you!
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  2. #2
    MHF Contributor Also sprach Zarathustra's Avatar
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    Re: A question regarding Bertrand's postulate (Erdős proof)...

    Think I got it...

    Lemma 3 insures it. If p>\sqrt{2n} then  R(p,n) is 1 or 0.

    Right?
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