Across
- 1. the objects they make up a set.
- 5. a set with no elements.
- 7. a set whose elements are all numbers of another set.
- 9. a set containing all elements considered in a given problem.
- 11. ⊄
- 13. ∪
- 14. is a collection of objects or elements.
- 15. ∩
Down
- 2. ∅
- 3. ∉
- 4. a branch of Mathematics that studies the nature of set.
- 6. \
- 8. a set with no elements in common.
- 10. use to show set membership.
- 12. ⊆