Set Theory Symbols

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Across
  1. 2. set of possible value
  2. 3. both sets have the same members
  3. 6. A ⊇ B
  4. 7. A ⊆ B
  5. 10. Ac
  6. 11. pair (a,b)
  7. 12. |A|
Down
  1. 1. product A×B
  2. 4. A ∩ B
  3. 5. { }
  4. 8. A ∪ B
  5. 9. set all subset of A