Across
- 1. Multiplying two sets together
- 5. All real numbers that are not rational
- 8. Two sets that do not share any elements
- 9. A set with no elements
- 11. the opposite truth value
Down
- 1. the number of elements in a set
- 2. Sets that have the exact same elements
- 3. the study of reasoning
- 4. A sentence that is either true or false but not both
- 6. A collection of nonempty subsets
- 7. A list of element that takes order into account
- 10. a collection of objects