无法调换
... 无法说明 inexplicability 无法调换 irreplaceability 无法超越的 unsurpassable ...
不可替代性
不可替代性 ( Irreplaceability ):仅有一些相同的组件可用。
不能取代
... 不能发音的 unpronounceable 不能取代 irreplaceability 不能取消 noncancelability ...
可替代性
不可替代性(Irreplaceability):仅有一些相同的组件可用。
不可取代性
不可代替性分析
In set theory, the axiom schema of replacement is a schema of axioms in Zermelo–Fraenkel set theory (ZFC) that asserts that the image of any set under any definable mapping is also a set. It is necessary for the construction of certain infinite sets in ZFC.The axiom schema is motivated by the idea that whether a class is a set depends only on the cardinality of the class, not on the rank of its elements. Thus, if one class is "small enough" to be a set, and there is a surjection from that class to a second class, the axiom states that the second class is also a set. However, because ZFC only speaks of sets, not proper classes, the schema is stated only for definable surjections, which are identified with their defining formulas.