“proper class”的概念、定义、翻译、参考文献-科学参考

单词	proper class
释义	proper class Mathematics See class.
随便看	Nijmegen, Treaty of (1678) Nikkei index Nikolayev, Andrian Grigoriyevich (1929–2004) NIL Nile, Battle of the (1 August 1798) nilpotent nilradical Nilson, Lars Fredrick nimbo-, nimbus nimbostratus Nimbus Nimeiri, Gaafar Muhammad al- (1930–2009) Nimitz, Chester William (1885–1966) NIMS nine-point circle Nineveh Nine Years War (1688–97) nine’s complement ninhydrin niobite niobium nipple Nirenberg, Marshall Warren nirvana NIS

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