This is documentation for Mathematica 7, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)

Cup (Cup)

Cup[x, y, ...]
displays as x cup y cup ....
  • Cup[x, y, ...] has no built-in meaning.
  • x cup y is by default interpreted as Cup[x, y].
New in 6