Check sibling questions

To prove set A = set B,


we first prove set A is a subset of set B,

and set B is a subet of set A


That means,

  • all elements of set A are in set B
  • all elements of set B are in set A

Since, both A and B have elements, they are equal


To write it in formula,

We first prove

A ⊂ B

& B ⊂ A

Then, A = B

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.