Across
- 4. both sets have the same members
- 5. set A is not a subset of set B
- 7. A U B
- 8. A is a superset of B. set A includes set B
- 10. {Z} = {...-3,-2,-1,0,1,2,3,...}
- 11. no set membership
- 12. ⊆
- 13. the number of elements of set A
- 15. A\B
Down
- 1. objects that belong to set A and set B
- 2. all the objects that do not belong to set A
- 3. set of all ordered pairs from A and B
- 6. all subsets of A
- 9. set of all possible values
- 14. a collection of elements