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Thread: help on proof

  1. #1
    Junior Member
    Jun 2006

    help on proof

    Let M be a finite projective plane so that all lines in M have the same number of points lying on them, call this number n+1.

    Prove: Each point in M has n+1 lines passing through it
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  2. #2
    Senior Member
    Jun 2005
    Take a point P and a line H not containing P. Count the lines L1,L2,...through P by considering the point of intersection Qi of each line Li with H.
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