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| 单词 | Zorn's lemma |
| 释义 | Zorn's lemma /zawrnz/, Math. a theorem of set theory that if every totally ordered subset of a nonempty partially ordered set has an upper bound, then there is an element in the set such that the set contains no element greater than the specified given element. [1945-50; after Max August Zorn (born 1906), German mathematician] |
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