Set Theory

4. set is often denoted as ∅
5. pair is a collection of two elements
7. both sets have the same member
8. is an operation that creates a new set containing all the distinct elements from the input sets
9. are sets A and B is denoted by the symbol "∩"
11. superset is a relationship between sets is denoted by the symbol "⊃" (or sometimes "⊋")
13. complement is an object that belong to A but not B
14. is a set that contains all the elements of another set, including the elements of the other set itself

1. is the number of elements of set A
2. is the set of all elements that belong to the universal set but not to the given set
3. product is an operation that combines two sets to create a new set
6. is denoted by the symbol "⊆."
8. set is a set of all possible values
10. is a collection of elements
12. subset is a subset relationship between two sets where one set is contained within another, and the two sets are not equal