Question

What is A ∪ A′ ?

A

A′

U

{ }​

Answer 1

Answer:

In set theory, the union of a collection of sets is the set of all elements in the collection. It is one of the fundamental operations through which sets can be combined and related to each other. A nullary union refers to a union of zero sets and it is by definition equal to the empty set.

Answer 2

Answer:

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