Singleton set – Sets

A set considering of any one element is called a singleton set.

Examples: {1}, {a}, {(a, b)} are singleton set.

A set A is called a finite set if it has finite number of elements. Otherwise it is called infinite set. The number of element in a finite set A is denoted by n(A) or |A|. This number is called the cardinality of the set A

%d bloggers like this: