Sets and Venn Diagrams

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Across
  1. 2. all elements of U which are not elements of set A
  2. 6. numbers that cannot be written in the form p/q
  3. 8. a collection of distinct numbers or objects
  4. 10. set of all elements considered
  5. 13. a set with an endless number of elements
Down
  1. 1. numbers 0,1,2,3,4,5...
  2. 3. a set with no elements
  3. 4. disjoint sets or mutually...
  4. 5. all members of sets A and B
  5. 7. members that belong to both set A and B
  6. 9. diagrams where sets are represented by circles and U by rectangle
  7. 11. when two sets have no elements in common
  8. 12. numbers that can be written in the form p/q