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  1. The Foundations of Geometry.David Hilbert - 1899 - Open Court Company (This Edition Published 1921).
    §30. Significance of Desargues's theorem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 CHAPTER VI. PASCAL'S THEOREM. §31. ...
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