Fill in the blanks in the following table:
Numbers |
Closed under |
|||
Addition |
Subtraction |
Multiplication |
Division |
|
Rational numbers |
Yes |
Yes |
No |
|
Integers |
Yes |
No |
||
Whole numbers |
... |
Yes |
||
Natural numbers |
No |
|||
The collection of ten most talented writers of India is not well defined as opinions about the ‘most talented writers’ vary from person to person.
Hence, the collection does not form a set.