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Unverified50% confidenceFactExact time

马祖尔为一个关于巴拿赫空间基的问题悬赏一只活鹅,该问题在37年后由瑞典数学家恩弗洛于1972年解决

1
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50%
Confidence
Long-term
Relevance
8/24/2026
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