Set crossword

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Across
  1. 1. or condition
  2. 4. When all answers are false
  3. 5. AUA=A
  4. 6. All answers are mixed up
  5. 9. common elements of two sets
  6. 11. ~q->~p
  7. 12. Combination of two sets
  8. 15. ~p->~q
  9. 16. 2 to the power elements
Down
  1. 2. No.of elements in finite set
  2. 3. Nothing is common between two sets
  3. 6. and condition
  4. 7. AU(BUC) =(AUB)UC
  5. 8. implication is p->q then q->p is
  6. 10. AUB = BUA
  7. 13. all the elements of one set is there in other set
  8. 14. When all answers are true