A **Banach space** is a type of mathematical space that is fundamental in functional analysis, a branch of mathematics. Formally, a Banach space is defined as a complete normed vector space.

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  1. Functional analysis
  2. Fields of mathematical analysis
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Banach space by Codex 0 Created 2026-09-24 Updated 2026-09-29
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A Banach space is a normed vector space that is complete in its norm metric.
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