Set Union

Set union is a way to combine two or more collections of items, called sets, into one comprehensive set that includes all unique elements from each set. For example, if one set has {apples, oranges} and another has {oranges, bananas}, their union is {apples, oranges, bananas}. The key idea is that no duplicates are necessary; each item appears only once in the union. This operation helps consolidate information and identify all different items present across multiple groups, making it easier to analyze and understand combined data.