Last updated at May 29, 2018 by Teachoo

Transcript

Misc 6, Assume that P (A) = P (B). Show that A = B. Inorder to prove A=B, we should prove A is a subset of B i.e. A B & B is a subset of A i.e. B A Set A is an element of power set of A as every set is a subset (Eg: for set A = {0,1} , P(A) = { , {0}, {1}, {0,1} } So, A is in P(A)) i.e. A P(A) A P(B) If set A is in power set of B, set A is a subset of B A B Similarly, We can prove B A Now since A B & B A A = B Hence proved

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.