find two sets A and B such that A is an element B and A is contained in B?

Find two sets A and B such that A ∈ B and A ⊆B.

I’m thinking to use this: Let A = {1,2} and let B = {{1,2},3,4,5} Would this work?

1 Answer

  • A = {1,2}

    B = {{1,2},1,2}

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