Is there any long list of subspaces of $\ell ^\infty$ (The set of real bounded sequences equipped with the supremum norm). This would help to find a great many counterexamples. Moreover, I wonder how much interesting subspaces can it have.
2026-04-04 03:54:29.1775274869
Is there any list of almost all subspaces of $\ell ^\infty$?
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