Question

what is universal set​

Answer 1

Answer:

• 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.

Answer 2

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• 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.