DM-set theory

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Across
  1. 2. statement that are always wrong
  2. 3. ~ sign is used for
  3. 8. set which contains all elements
  4. 9. set which contains no elements
  5. 10. if ram is happy only if he is strong which connective is used
  6. 12. ram is happy and he is strong which connectives is used here
  7. 13. what is the number of distinct element present in the specific set
  8. 16. pictorial representation of sets
  9. 17. set of all subset?
Down
  1. 1. ram is happy or he is strong which connective is used
  2. 4. statement that are always true
  3. 5. if ram is happy then he is strong which connective is used
  4. 6. A union of A is
  5. 7. ~~p is
  6. 11. the set which is subset of all set
  7. 14. negation of conditional statement
  8. 15. A intersection of A is