Formal target: Corpus.Erdos143.erdos_143.parts.ii
Or $$ \sum_{x \in A} \frac{1}{x \log x} < \infty, $$
Exact formal statement
∀ (A : Set.{0} Real),
Corpus.Erdos143.WellSeparatedSet A →
Summable.{0, 0} fun x =>
HDiv.hDiv.{0, 0, 0} 1 (HMul.hMul.{0, 0, 0} (Subtype.val.{1} x) (Real.log (Subtype.val.{1} x)))This target is a formal statement, not a proof of the problem.
Environment availability: available.