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Questions
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Is “compact implies sequentially compact” consistent with ZF?

feb 19 at 8:41 sgarde 1

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15
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What’s so great about blackboards? [closed]

jul 19 10 at 7:22 Andrew Stacey 16k●1●40●110

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7
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What’s an example of a space that needs the Hahn-Banach Theorem?

nov 17 09 at 14:38 Andrew Stacey 16k●1●40●110

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Terminology in category theory

nov 23 09 at 16:14 Mikael Vejdemo-Johansson 1,459●1●5●15

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When is a locally convex topological vector space normal or paracompact?

dec 14 09 at 21:19 Greg Kuperberg 36.3k●2●116●179

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How can one characterise compactness-by-experiment?

may 10 10 at 18:50 Henno Brandsma 2,216●6●18

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What is an isomorphism of Banach spaces?

nov 10 11 at 18:51 Bill Johnson 14.4k●1●33●60

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What is a projective space?

dec 1 09 at 19:49 Gonçalo Marques 286●2●5●8

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Is the category of Banach spaces with contractions an algebraic theory?

feb 5 10 at 18:18 Yemon Choi 8,446●1●19●44

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What’s the nearest algebraic theory to inner product spaces?

dec 18 09 at 0:49 Greg Kuperberg 36.3k●2●116●179

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