- 类 (数学)
- class: n. 1.阶级;社会等级。 2.学级；班级，年级，级，班 ...
- set theory: 【数学】集(合)论。
- theory of class: 类型论
- set class: 集合等级
- a review on the theory of middle class: 关于中产阶级的理论回顾
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class (set theory)中文什么意思
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- 类 (数学)
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百科释义
In set theory and its applications throughout mathematics, a class is a collection of sets (or sometimes other mathematical objects) which can be unambiguously defined by a property that all its members share. The precise definition of "class" depends on foundational context.
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