Venn diagram crossword

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Across
  1. 3. set that contains exactly those elements belonging to the universal set but not to a given set
  2. 8. numbers that are less than zero
  3. 9. a whole number
  4. 11. when all elements are in the middle
  5. 14. how likely something is to happen
  6. 15. set of elements in the universal set that is not part of the original set
  7. 17. means a not happening
  8. 20. a member of a set
Down
  1. 1. a part of a qiven set
  2. 2. a number that can be made by dividing two integers
  3. 4. a number that can be divided by another number without a remainder
  4. 5. when all elements are in a or b
  5. 6. it is used to sort things
  6. 7. a set that does not contain any element
  7. 10. the union of both rational and irrational numbers
  8. 12. numbers that cannot be represented as a simple fraction
  9. 13. numbers that are used for counting and are a part of real numbers
  10. 16. numbers that can be divided into two equal groups or pairs and are exactly divisible by 2
  11. 18. means either or both
  12. 19. means both