Definition:Convergent Sequence/Metric Space/Definition 3

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Definition

Let $M = \struct {A, d}$ be a metric space or a pseudometric space.

Let $\sequence {x_k}$ be a sequence in $A$.


$\sequence {x_k}$ converges to the limit $l \in A$ if and only if:

$\displaystyle \lim_{n \mathop \to \infty} \map d {x_n, l} = 0$


Also see


Sources