union axiom

名词 n.

英文释义

名词 n.
  1. The axiom stating that for every set of sets A, there exists a set C whose elements are all and only the elements of at least one B ∈ A.
    — For every set T there corresponds a set ∪T which consists of all the elements of the elements of T.

词形变化

union axioms plural
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