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Math Help - equivalence

  1. #1
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    equivalence

    If n is equivalent to n' and m is equivalent to m', prove that (n+m) is equivalent to (n'+m').
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  2. #2
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    How is equivalence defined here?
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  3. #3
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    I have a def. that says that if {a_n} is a convergent sequence and {a_n}-{b_n} is a null sequence then {a_n} is equivalent to {b_n}
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