Assume (an) is a bounded sequence with the property thatevery convergent subsequence of (an) converges to the same limit a ∈ R. Show that (an) must converge to a.
Added by Tom-S N.
Step 1
Since $(a_n)$ is a bounded sequence, by the Bolzano-Weierstrass theorem, it has a convergent subsequence. Let's call this subsequence $(a_{n_k})$. Show more…
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