The collection is a set or not a set?The collection of all the rivers of India.
The collection of all the rivers is a well-defined collection because we can easily enlist all the rivers of India.Hence, the collection is a set.
The collection is a set or not a set?The collection of all political parties in India.
The collection is a set or not a set?The collection of good hockey players in India.
The collection is a set or not a set?The collection of all months of a year beginning with the letter J.