Source: wikibot/union-set-theory
= Union (set theory)
{wiki=Union_(set_theory)}
In set theory, the **union** of two or more sets is a fundamental operation that combines the elements of those sets into a new set. The union of sets collects all elements that are in at least one of the sets being considered, without duplication. The union of two sets \\( A \\) and \\( B \\) is denoted as \\( A \\cup B \\).