msakai/README.md

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体 F が x + y = 1 かつ x y = 1 を満たすような元を持たない時、F ∪ {∞} は演算 x ⊛ y := (x y - 1) / (x + y - 1) に関して群になる

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extended-group

Moved to https://github.com/msakai/extended-group

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