Poincaré conjecture
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English[edit]
Etymology[edit]
Originally conjectured by Henri Poincaré.
Proper noun[edit]
the Poincaré conjecture
- The theorem that the only simply connected, closed 3-dimensional manifold is a sphere.
Usage notes[edit]
- This is still (2008) known as the Poincaré conjecture but is now a theorem rather than a conjecture.