Across
- 1. A set that is part of another set
- 3. The process of finding the union of sets
- 6. Elements that are in one set but not another
- 8. The set of all elements not in a given set
- 12. A set containing no elements
- 13. A set that contains other sets
- 17. A set formed by taking elements from one set
- 19. The largest set that is a subset of two given sets
- 20. Two sets with no elements in common
Down
- 2. Elements that are in either of two sets
- 4. A set that does not change under an operation
- 5. A subset containing all elements of the original set
- 7. A collection of distinct objects
- 9. Sets that have the same elements
- 10. The number of elements in a set
- 11. A diagram used to represent sets
- 14. Two sets that are equal
- 15. The set of all subsets of a given set
- 16. A set with all possible elements
- 18. An operation that combines all elements from two sets