nLab Fano's axiom

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Fano’s axiom is an axiom in synthetic projective geometry stating that for a complete quadrangle the three diagonal points are never colinear.

This is a theorem for a projective plane over a field in characteristic different from 22.

category: geometry.

Last revised on April 15, 2025 at 12:35:12. See the history of this page for a list of all contributions to it.