SET THEORY

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Across
  1. 1. this set has 2^n elements
  2. 4. A ∩ B
  3. 8. a type of subset
  4. 9. diagrammatic representation of sets
  5. 11. no. of distinct elements
  6. 13. unordered collection of distinct objects
  7. 14. no elements
  8. 15. every element of A is present in B
Down
  1. 2. a method of representing sets
  2. 3. set has finite upper and lower bound
  3. 5. A ∩ B is empty set
  4. 6. U - A
  5. 7. A ∪ B
  6. 10. A and B have same elements
  7. 12. members can appear more than once