A few years later Paul Erdős improved this bound by removing the log n term, but what is more interesting, he showed that this is, in fact, a simple consequence of the theorem of Sperner (see page 213).
CITATION STYLE
Aigner, M., & Ziegler, G. M. (2018). On a lemma of Littlewood and Offord. In Proofs from THE BOOK (pp. 179–182). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-662-57265-8_25
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