Brianchon's Theorem is Projective Dual to Pascal's Theorem

Theorem

Brianchon's Theorem is the projective dual of Pascal's Theorem.

Proof

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Sources

• 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $6$
• 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $6$