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Math Help - A triangle B?

  1. #1
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    A triangle B?

    A = {1,2,3} and B = {2,3,4,5}

    What does A triangle B mean?

    By triangle I mean the triangle symbol. What does the triangle represent?
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  2. #2
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    Re: A triangle B?

    Quote Originally Posted by kmjt View Post
    A = {1,2,3} and B = {2,3,4,5}

    What does A triangle B mean?

    By triangle I mean the triangle symbol. What does the triangle represent?
    My guess is the Symmetric difference

    Symmetric difference - Wikipedia, the free encyclopedia

    As this is just a guess (every book is different). Check your text or class notes.
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  3. #3
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    Re: A triangle B?

    Nvm you were right in your guess, thanks!
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