Discrete Structures Crossword

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Across
  1. 1. a small circle for each element
  2. 5. Set of elements which belongs to A but which does not belong to B
  3. 9. if the element is equal to the another element
  4. 17. if and only if R is partial order which is complete
  5. 18. Sets A and B denoted by A+B consists of those elements which belong to A and to B but not both a and B
  6. 19. The proposition of q
  7. 22. Two set A and B are equivalent if they have exactly the same number of elements
  8. 23. Set of all elements which are in at least A or B
  9. 24. If p then q
  10. 25. if and only if R is strict partial order which is complete
  11. 26. A set whose elements are unlimited or uncountable
  12. 27. The set of sets or collection of sets and some of its subsets in a given set
  13. 30. Two sets are complementary sets if they are disjoint and if when combined collectively they form the universal set
  14. 32. The resulting pictorial representation
  15. 34. is a rule that makes a relation between two sets of element
  16. 36. Two sets A and B are disjoint if they have no elements in common
  17. 37. A set containing no objects or elements
  18. 38. a set A to set B is a subset R of the Cartesian product
  19. 40. A proposition that is either true or false
Down
  1. 2. p->q is the implication p->q
  2. 3. The set of all subsets of a set A
  3. 4. A is a subset of B denoted by A B if every element of A is contained in B
  4. 6. if and only if each a E M
  5. 7. The given elements are limited or countable
  6. 8. set of elements which belongs to the universal set U but which does not belong to A
  7. 10. if ang only R is reflexive, transitive, and antisymmetric
  8. 11. Set of all possible elements under consideration
  9. 12. p-> is the implication of -p->-q
  10. 13. p->q
  11. 14. is the set of all left components of the element of R
  12. 15. if and only R is irreflexive and transitive
  13. 16. Two sets of A and B is defined as the set of all ordered pairs
  14. 20. is a set of ordered pairs with the property that no two ordered pairs have the same first component
  15. 21. A set with only one element
  16. 27. p->q is the implication -q->-p
  17. 28. P if and only if q
  18. 29. A proposition that is always false
  19. 31. Set of all elements which belong to both A and B
  20. 33. is the set of all right components of the elements of R
  21. 35. A statement is true for all possible values of its propositional variables
  22. 39. A directed line