SET THEORY

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