Notation for Referencing Elements in a Set

[danago]

Hi. I am just wondering, is there any notation i can use to refer to elements ONLY in a certain set. Usually, given sets A, B and C, i could refer to elements of only set A as A \cap \overline B \cap \overline C, but is there some notation that specifically refers to elements ONLY in a certains set?

 

[ZioX]

I can't think of anything offhand. The question, as posed, is silly. Care to put it in context?

 

[f(x)]

Hi. I am just wondering, is there any notation i can use to refer to elements ONLY in a certain set.

\in A ....??

 

[HallsofIvy]

Set difference is the usual notation: A\B is the set of elements of A that are not in B. A\(BUC) is the set of elements of A that are not in B or C.