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general topology - Let $X = 0,2$ and $A = \0,1,2\$. Prove that $X / A$ is homeomorphic to $C_1$ ∪ $C_-1$ - Mathematics Stack Exchange

http://math.stackexchange.com/questions/329628/let-x-0-2-and-a-0-1-2-prove-that-x-a-is-homeomorphic-to-c-1

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