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Poincaré conjecture

Noun CEFR B2

Definitions

The theorem that the only simply connected, closed 3-dimensional manifold is a sphere.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

Poincaré disk Poincaré map Poincaré recurrence time Poincaré space Poincaré-Birkhoff-Witt theorem poinciana

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