# Union (mathematics)

### From Conservapedia

In mathematics, a **union** of sets is a set of elements that belong to at least one of the sets. The union of sets A and B is denoted A ∪ B and is formally defined as A ∪ B = {x|xϵA OR xϵB}.

In mathematics, a **union** of sets is a set of elements that belong to at least one of the sets. The union of sets A and B is denoted A ∪ B and is formally defined as A ∪ B = {x|xϵA OR xϵB}.