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Every connected (non-empty) one-dimensional topological manifold is homeomorphic to one of these 7: the circle, the closed interval, the open interval (real line), the half-open interval, the closed long ray, the open long ray, or the long line. [Post]

Submitted: 2009-11-29 00:57:49;   Last Modified: 2009-11-29 18:21:41.
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