- The difference between two sets, A-B, is the set of elements that are in A but not in B
- The symmetric difference between two sets, A and B, denoted A ⊕ B, is the set of elements that
are a member of exactly one of A and B, but not both
- A⊕ B = (A- B ) ∪ ( B -A)
- The complement of a set A, denoted A with (- ) above, is the set of all elements in U that are not
elements of A
- Complement = U - A
- Summary of set operations
- Combining set operations to create new sets