Parent Page (H.S.M. Coxeter. The Real Projective Plane)

H.S.M. Coxeter.
The Real Projective Plane.

Springer Science & Business Media, 1992.

Chapter 2. Incidence.

2.4. Quadrangle and quadrilateral      2.5. Harmonic Conjugacy

2.4. Quadrangle and quadrilateral      2.5. Harmonic Conjugacy

Parent Page (H.S.M. Coxeter. The Real Projective Plane)