Consider two sets

*A*and*B*in a universal set U. The intersection of sets*A*and*B*is the set of elements in U that simultaneously belong to*A*and*B*.The intersection of

*A*and*B*refers to both the operation and the result of this operation, which is the set of elements common to*A*and*B*.### Symbol

The symbol used is: “∩”, which is read as “inter” or “intersection”.

Therefore, *A* ∩ *B* is read as “*A* inter *B*” or “set *A* intersection set *B*“.