Question: Prove : a sequence (T,) in R is divergent if and only if for every r e R, there is e > 0 and a

Prove :

Prove : a sequence (T,) in R is divergent if and
a sequence (T,) in R is divergent if and only if for every r e R, there is e > 0 and a subsequence (T, ) such that (X,, - x) 2 6 for all ke N

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