- #1

azal

- 8

- 0

So here's my question:

Suppose we have two sets [itex]A[/itex] and [itex] B[/itex], then [itex]A \setminus B[/itex] denotes their set-difference.

Does there exist an equivalent operator for the case where A and B are not sets, but sequences?

Otherwise, is there an operator to convert a sequence into a set, removing the index, and all repetitions? In that case, I can take my sequences, convert them to their corresponding sets, and use [itex] \setminus [/itex] to get the result I'm looking for.

Also, what is the counterpart of [itex] A \cup \{b\}[/itex] for the case where [itex] A [/itex] is a sequence? is it [itex] A \oplus b[/itex]?

I can't seem to find such conventions regarding sequences anywhere on the web ...

Thanks so much for your help,

-A.