The set difference A\\B of sets A and B, also known as the relative complement, is the set consisting of all elements of A that are not elements of B. The notation A−B is also used. The set is represented by the shaded region of the Venn diagram shown in the figure.
The set difference A\\B
The dyadic operation between two sets S and T, say, resulting in the set S − T consisting of those elements that are in S but not in T. Formally
Set difference is a generalization of the idea of the complement of a set and as such is sometimes called the relative complement of T with respect to S. The symmetric difference between two sets S and T is the union of S − T and T − S.
- OD
- od
- Oda Nobunaga (1534–82)
- Odderade
- odd-even check
- odd-even rule
- odd-even transposition sort
- odd function
- odd integer
- Oddo–Harkins rule
- odd parity
- odd part
- odd permutation
- odds
- odds ratio
- odd–even nucleus
- odd–odd nucleus
- ODE
- Oder–Neisse Line
- Odin
- Odintsovo
- Odling, William
- Odoacer (433–93)
- Odonata
- odontoblast