Across
- 2. – A mathematical statement having a definite truth value.
- 3. – A proposition that is always true.
- 6. – A logical operation representing “AND”.
- 8. – A set containing a limited number of elements.
- 9. DIFFERENCE – The elements belonging to one set but not another.
- 11. – A well-defined collection of distinct objects.
- 12. – A statement expressed in the form “if...then”.
- 14. – A set having a fixed upper and lower limit.
- 21. – A principle used to count elements of overlapping sets without double-counting.
- 25. – A set that does not have a finite number of elements.
- 26. – A set containing exactly one element.
- 27. SET – A set containing no elements.
- 29. – A logical operation representing “OR”.
- 30. – Sets having no elements in common.
Down
- 1. – An argument used to prove that some infinite sets are uncountable.
- 4. – A set that cannot be matched one-to-one with natural numbers.
- 5. – A set whose elements can be matched with natural numbers.
- 7. – A proof method using a base case and an inductive step.
- 10. – A statement accepted as true without proof.
- 13. – A proposition that is always false.
- 15. – A set in which every element is also contained in another set.
- 16. – A statement expressed using “if and only if”.
- 17. TABLE – A table showing truth values for all possible combinations.
- 18. SET – A set containing all objects under consideration.
- 19. – The set containing elements common to two sets.
- 20. SET – The set containing all subsets of a given set.
- 22. – A set having no fixed upper or lower limit.
- 23. – A proposition that is sometimes true and sometimes false.
- 24. – The number of elements in a set.
- 28. – The set formed by combining the elements of two sets.