Universal Set

Universal Set

This is the set from which all the elements being examined are members. The universal set is denoted by the symbol U.

Example
Using set builder notation, where {x:..} means ‘the set of all x such that’,
If A = {0, 1, 2, 3, 4, 5, 6…}
Then U = {x: x≥ 0, x Є W}

That is, the universal set, U = W, the set of whole numbers.


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