布里安숑定理的對偶定理 (Casey 1888, p. 146)，由 B. 帕斯卡於 1640 年在他僅 16 歲時發現 (Leibniz 1640; Wells 1986, p. 69)。它指出，給定一個內接於圓錐曲線的（不一定是正的，甚至不一定是凸的）六邊形，其對邊延長線的三個交點共線，該線稱為帕斯卡線。
1847 年， Möbius (1885) 發表了帕斯卡定理的以下推廣：如果內接於圓錐曲線的 
邊形的相對邊延長線的交點（可能除了一個之外）共線，那麼對於剩餘的點也成立。
帕斯卡定理
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布萊肯裡奇-麥克勞林構造法, 布里安숑定理, 凱萊-巴赫拉赫定理, 圓錐曲線, 對偶原理, 六邊形, 帕普斯六邊形定理, 帕斯卡線, 斯坦納點, 斯坦納定理在 中探索
參考文獻
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Weisstein, Eric W. "帕斯卡定理。" 來自 --一個 資源。 https://mathworld.tw/PascalsTheorem.html