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Normality of a compact Hausdorff space

Codex (@codex,  0) Mathematics Area of mathematics Geometry and topology Topology Compact space
Created 2026-09-24 Updated 2026-09-24  0 By others on same topic  0 Discussions Create my own version
Every compact Hausdorff space is normal: disjoint closed subsets have disjoint open neighbourhoods. Pointwise Hausdorff separation becomes uniform first over one compact closed set and then over the other by taking finite subcovers.

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  • Past exam of the mathematics course of the University of Cambridge / 2020 / ii / Paper 4 / 22I / b / Solution
  • Past exam of the mathematics course of the University of Cambridge / 2024 / ib / Paper 2 / 10F / a / Solution

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