Set Theory Symbols

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Across
  1. 4. Objects that belong to set A and set B
  2. 7. Objects that belong to set A or set B
  3. 8. A collection of elements
  4. 10. A \ B
  5. 13. P(A)
  6. 14. A ⊇ B
  7. 15. |A|
Down
  1. 1. Collection of 2 elements
  2. 2. Set of all possible values
  3. 3. A ⊄ B
  4. 5. All the objects that do not belong to set A
  5. 6. A ⊆ B
  6. 9. Ø
  7. 11. |
  8. 12. Both sets have the same members