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Definition of Hairy ball theorem
1. Noun. A theorem stating that, given a sphere covered in fur, one cannot brush all the hairs flat without creating at least two whirls. ¹
2. Noun. (mathematics) A theorem stating that there is no nonvanishing continuous tangent vector field on the sphere. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Hairy Ball Theorem
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