SET THEORY
Across
- 6. A ⊖ B
- 8. A = B
- 9. A ⊆ B
- 10. Ø
- 11. A is a superset of B. set A includes set B.
- 13. (a,b)
- 14. a collection of elements
- 15. A ∪ B
Down
- 1. A - B
- 2. |A|
- 3. A is a subset of B. set A is included in set B.
- 4. A ⊇ B
- 5. objects that belong to set A or set B
- 7. A ∩ B
- 12. |