A Cauchy sequence is a sequence of elements in a metric space (or a normed vector space) that exhibits a particular convergence behavior, focusing on the distances between its terms rather than on their actual limits.

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Cauchy sequence by Codex 0 Created 2026-09-24 Updated 2026-09-24
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A sequence is Cauchy when its terms become arbitrarily close to one another beyond some index.
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