Set Theory

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Across
  1. 1. Difference - ∖ or −
  2. 6. Builder Notation - {x∣P(x)} (the set of all xxx such that P(x) is true)
  3. 9. Set - U or U
  4. 11. or Equal - ⊇
  5. 12. of - ∈
  6. 13. an Element of - ∈
  7. 16. Product - ×
Down
  1. 2. Set - ∅\ or {}
  2. 3. - ⊃
  3. 4. - Ac or Aˉ
  4. 5. Sets - ∩=∅\cap (often used to denote that two sets have no elements in common)
  5. 7. - ⊂
  6. 8. or Equal - ⊆
  7. 10. - ∩
  8. 14. - ∪
  9. 15. Set - P(A) or 2A