1. The Baire category theorem - Aarhus Universitet
1. The Baire category theorem - Aarhus Universitet
1. The Baire category theorem - Aarhus Universitet
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On locally compact Hausdorff spaces<br />
Proof.<br />
It follows that B ⊆ <br />
α∈F Uα, proving that B is compact.<br />
Lemma<br />
Let X be a locally compact Hausdorff space, K a compact subset<br />
of X and U an open subset of X such that K ⊆ U. <strong>The</strong>re is then<br />
an open set V in X with compact closure V such that<br />
K ⊆ V ⊆ V ⊆ U.<br />
Klaus Thomsen <strong>1.</strong> <strong>The</strong> <strong>Baire</strong> <strong>category</strong> <strong>theorem</strong>