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Math Help - closure sets

  1. #1
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    closure sets

    Hello!

    I need help finding an example in which the closure of (A and B) is strict subset of the closure(A) and closure(B) given that A and B are subsets of R.

    Thanks
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  2. #2
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    Quote Originally Posted by inthequestofproofs View Post
    I need help finding an example in which the closure of (A and B) is strict subset of the closure(A) and closure(B) given that A and B are subsets of R.
    Consider A=(0,1)~\&~B=(1,2).
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