A binary operator representing set intersection that produces a set containing elements common to both input sets.
Examples
Basic set intersection
A \cap B \text{ represents the intersection of sets A and B}
Multiple set intersection
\{1,2,3,4\} \cap \{2,4,6,8\} = \{2,4\}
Intersection in probability
P(A \cap B) = P(A) \cdot P(B) \text{ for independent events}