The union of two sets A and B is the set of elements in A, or B, or both.

The symbol is a special "U" like this: ∪

Example: The union of the "Soccer" and "Tennis" sets is alex, hunter, casey, drew and jade, which is written:

Soccer ∪ Tennis = {alex, hunter, casey, drew and jade}

The symbol is a special "U" like this: ∪

Example: The union of the "Soccer" and "Tennis" sets is alex, hunter, casey, drew and jade, which is written:

Soccer ∪ Tennis = {alex, hunter, casey, drew and jade}

See: Intersection (sets)

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