Talk:Approximation property

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This page contains references to space "$$l_p$$". Is that supposed to be $$l^p$$? -- JanCK (talk) 22:51, 6 August 2008 (UTC)

- That's just a different notation. Some authors put p below, reserving the upper index for dimension. 147.231.88.128 (talk) 15:06, 3 September 2010 (UTC)

Counterexamples
Can a reference be added to the last sentence of the third paragraph? "The spaces \ell^{p} for p\neq 2 and c_0 have closed subspaces that do not have the approximation property." Boy Waffle (talk) 15:46, 21 June 2018 (UTC)