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Math Help - Intersection (set theory) help needed!

  1. #1
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    Intersection (set theory) help needed!

    Im having trouble finding out step by step the answer to the definition of the union of two sets A and B.


    A∩B = {x|x ∈ A Λ x ∈ B}

    But I will be greatful if someone here could explain in step by step on how to do this question.

    Thanks in advance.
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  2. #2
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    Quote Originally Posted by ali_f View Post
    finding out step by step the answer to the definition of the union of two sets A and B.
    A∩B = {x|x ∈ A Λ x ∈ B}
    But I will be greatful if someone here could explain in step by step on how to do this question.
    First, I do not see any question there at all.
    May be you can rewrite the problem to make into a question.

    Moreover, you have written the set notation for intersection not union.
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  3. #3
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    Ok......I how do I find out the union of two sets A and B? If somebody could help me via step by step how I could work this one out, I would be grateful.

    As I have added the answer in the first post, my idea is to try to understand each part of the solution. The thing is, I will be having a test soon (multiple choice), and I really don't want to guess etc. I only know the answer I mentrioned above as I've been told by my lecturer, so if someone here could explain to me step by step, including the definition of each symbol, I would be grateful.

    Thanks...
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