The intersection operator is denoted using the cap symbol . Typically, we write an intersection like this:
This means the intersection of the sets and . For example, if and then the intersection is .
The cup symbol is used in mathematics to represent the union operation for two sets. The union operator returns a set containing the elements from both sets.
The minus symbol is used in set theory to represent the difference operator for two sets. The operation removes all elements found in one set from another and returns the resulting set.