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Research notes on every problem, and a library of the papers behind them. Built from the open erdos repository.
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Covering systems and density
source_notes/: Paper summaries and source comparisons used in the research on Problem 25.
Problem 25 asks whether the integers avoiding a chosen residue class for each modulus in an increasing sequence always have a logarithmic density. The site lists it as open. The source notes summarize the published work used in reading it.
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