Question

define singleton set​

Answer 1

Answer:

A set which contains only one element is called a singleton set. For example-the set of even prime numbers i.e {2}

Answer 2

Answer:

In mathematics, a singleton, also known as a unit set, is a set with exactly one element. For example, the set {null} is a singleton containing the element null. The term is also used for a 1-tuple.