From the text: “N. J. Kuhn pointed out that there is an error in Section 6 of this paper, and that the correct result is already in the literature. There is an evident homeomorphism s ′ : CS 0 → DS 0 of spaces, and also a Snaith splitting map s: Σ ∞ CS 0 → Σ ∞ DS 0 of spectra. It was asserted without proof in Theorem 6.2 that s = Σ ∞ s ′ , but this is false. For the diagram in Proposition 6.3 to commute, the map labelled Σ 2 s on the left hand edge needs to be replaced by Σ ∞+2 s ′. The argument given actually shows that the corrected diagram commutes rather than the original one, and this is the result implicitly used elsewhere in the paper, so all the other results are unaffected.
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