Let us take the set A = {1, 2}

Let us find all the subsets of A


We know from property of subsets that

  • Empty set is the subset of all sets
  • Every set is a subset of itself


So, subsets of A will be


{1}, {2},

{1, 2}


Power set is the set of all subsets.

So, we write power set of A as

P(A) = {∅, {1}, {2}, {1, 2}}

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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 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.