A set is denoted by capital letter symbol

Eg: A = {1, 2, 3, 4, 5}

Here A is the set.

1, 2, 3, 4, 5 are elements of set .

 

We can also write

1 belongs to A

i.e.1 A

 

Similarly,

2 ∈ A

3 ∈ A

4 ∈ A

5 ∈ A

 

Since, 6 is not in set A,

We write, 6 doesn’t belong to A

i.e. 6 ∉ A

 

 

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.