discrete crossword puzzle 1

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Across
  1. 3. The set of all possible input values of a function.
  2. 4. The logical operation that reverses the truth value of a proposition.
  3. 6. A relation where aRb implies bRa.
  4. 9. A set in which every element is also an element of another set.set containing all elements belonging to at least one of two sets.
  5. 10. A declarative statement that is either true or false.
  6. 12. A collection of well-defined distinct objects
  7. 14. The set containing all objects under consideration.
  8. 15. A set containing no elements.
  9. 16. The set containing elements common to two sets.
  10. 19. The logical operator that represents “OR”.
  11. 20. The set of all output values produced by a function.
  12. 23. A relation in which every input has exactly one output.
  13. 24. A function in which different inputs have different outputs
  14. 26. The set of all subsets of a given set.
  15. 27. A proposition that is false for every possible assignment of truth values.
  16. 28. A relation where aRb and bRc imply aRc.
  17. 29. A compound proposition of the form 'if p, then q'.
Down
  1. 1. A compound proposition formed using the logical connective OR.
  2. 2. The set of elements in the universal set but not in the given set.
  3. 5. A relation where aRb and bRa imply a = b.
  4. 7. An individual member of a set.
  5. 8. A proposition that is always false.
  6. 11. A set of ordered pairs that describes a connection between elements of sets.
  7. 13. A compound proposition formed using the logical connective AND.
  8. 17. A relation in which every element is related to itself.
  9. 18. A proposition stating that two statements are true together or false together.
  10. 21. A proposition that is true for every possible assignment of truth values.
  11. 22. The number of elements in a finite set.
  12. 25. A set containing no elements