Question

what is universal set​

Answer 1

Answer:

the set containing all objects or elements and of which all other sets are subsets.

Answer 2

Answer:

In set theory, a universal set is a set which contains all objects, including itself. In set theory as usually formulated, the conception of a universal set leads to Russell's paradox and is consequently not allowed. However, some non-standard variants of set theory include a universal set.

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