最終更新日：2022/12/24
Every circle 𝛾 on the Riemann sphere 𝛴 which does not go through a given point P*∈𝛴 divides 𝛴 into two parts, such that one part contains P* and the other does not.
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Every circle 𝛾 on the Riemann sphere 𝛴 which does not go through a given point P*∈𝛴 divides 𝛴 into two parts, such that one part contains P* and the other does not.
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