Across
- 2. set A is included in set B.
- 3. set A includes set B
- 7. the number of elements of set A
- 9. a collection of elements
- 10. infinite cardinality of natural numbers set
- 11. such that
- 12. objects that belong to set A and set B
- 15. both sets have the same members
Down
- 1. all the objects that do not belong to set A
- 4. objects that belong to set A or set B
- 5. A×B
- 6. ℂ
- 8. ℚ
- 13. ℝ
- 14. Ø
- 16. U