Set Theory Symbols

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Across
  1. 8. Both sets have the same members
  2. 9. Objects that belong to set A and set B
  3. 11. A is a subset of B, but A is not equal to B
  4. 14. Set A is not a subset of set B
  5. 15. Objects that belong to set A or set B
Down
  1. 1. Objects that belong to A or B but not to their intersection
  2. 2. It is presented by the symbol "ø= {}"
  3. 3. Infinite cardinality of natural numbers set
  4. 4. All the objects that do not belong to set A
  5. 5. Collection of 2 elements
  6. 6. Presented by the symbol "{ }"
  7. 7. All subsets of A
  8. 10. The number of elements of set A
  9. 12. A is a superset of B, set A includes set B
  10. 13. A is a subset of B. Set A is included in set B