Across
- 4. all the objects that do not belong to set A
- 5. A ∩ B
- 7. A ⊇ B
- 9. cardinality of countable ordinal numbers set
- 10. a collection of elements
- 12. A = B
- 14. infinite cardinality of natural numbers set
Down
- 1. A ∆ B
- 2. Ø
- 3. set of all possible values
- 6. ∈
- 7. A ⊆ B
- 8. A ∪ B
- 11. |A|
- 13. ℵ