On the Sylvester-Gallai theorem for conics
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proofsylvester-gallaitheoremalgebraicanaloguecomeconicscremona
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In the present note we give a new proof of a result due to Wiseman and Wilson which establishes an analogue of the Sylvester-Gallai theorem valid for curves of degree two. The main ingredients of the proof come from algebraic geometry. Specifically, we use Cremona transformation of the projective plane and Hirzebruch inequality.
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