Hartogs number
(chemistry) Describing the cleavage of a radical ion in such a way as to generate both a radical and an ion
(set theory) For a given set X, the cardinality of the least ordinal number α such that there is no injection from α into X.
simple past tense and past participle of niggerise
The state, essence, or quality of being a bear (the mammal). / The state of being a bear (in homosexual subculture).
無限集合の大きさを比較するために、集合論者はしばしば与えられた集合に対して、その集合へ単射が存在しない最小の順序数の基数を調べる。
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