SET THEORY SYMBOLS

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Across
  1. 4. A ⊄ B
  2. 5. a collection of elements
  3. 6. A ⊆ B
  4. 9. Ac
  5. 10. A ⊇ B
  6. 13. A ∩ B
  7. 14. 2A and \mathcal{P}(A)
Down
  1. 1. A \ B
  2. 2. set of all possible values
  3. 3. Ø = { }
  4. 4. A ⊅ B
  5. 7. A ∪ B
  6. 8. |A| and #A
  7. 11. A = B
  8. 12. collection of 2 elements