Set theory symbols

123456789101112
Across
  1. 3. A \ B complement
  2. 4. Ac
  3. 6. A×B product
  4. 7. A ⊃ B superset
  5. 8. A = B
  6. 9. 2A set
  7. 11. A ∆ B difference
  8. 12. A ∪ B
Down
  1. 1. A ∩ B
  2. 2. (a,b) pair
  3. 5. A ⊂ B subset
  4. 6. |A|
  5. 7. A ⊇ B
  6. 10. A ⊆ B
  7. 11. {}