Across
- 3. every object which is included in a set
- 7. a set which has no member
- 9. set of numbers that start from 1
- 10. a set which contains all members of the sets under consideration
Down
- 1. numbers which have exactly two factors
- 2. set of numbers that start from 0
- 4. one of three ways to describe a set
- 5. numbers which have more than two factors
- 6. collection of objects which can be clearly defined
- 8. a set may be expressed using this kind of bracket