## relative-complement

Noun

(*plural* relative complements)

Usage notes

- In mathematical expressions, the relative complement of
*A*in*B*is denoted*B*∖*A*according to the ISO 31-11 standard (sometimes written*B*−*A*, but this notation is ambiguous, as in some contexts it can be interpreted as the set of all*b*−*a*, where*b*is taken from*B*and*a*from*A*).