Question

Write the definitions of different types of set.​

Answer 1

Answer:

The different types of sets are explained below with examples. Empty Set or Null Set: A set which does not contain any element is called an empty set, or the null set or the void set and it is denoted by ∅ and is read as phi. ... An empty set is a finite set, since the number of elements in an empty set is finite, i.e., 0.

Answer 2

Answer:

A set is a well-defined collection of distinct objects. ... The most basic properties are that a set can have elements, and that two sets are equal (one and the same) if and only if every element of each set is an element of the other; this property is called the extensionality of sets