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Homotopy
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Topology
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Table of contents
422
Generalized Poincaré conjecture
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Homotopy
255
Exotic sphere
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Generalized Poincaré conjecture
0
Poincaré conjecture
link
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Generalized Poincaré conjecture
0
Classification of closed surfaces
link
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Generalized Poincaré conjecture
158
Torus
link
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Classification of closed surfaces
0
Möbius strip
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Classification of closed surfaces
0
Klein bottle
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Classification of closed surfaces
9
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Ciro Santilli
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中国独裁统治 China Dictatorship 新疆改造中心、六四事件、法轮功、郝海东、709大抓捕、2015巴拿马文件 邓家贵、低端人口、西藏骚乱