Formal target: Corpus.WikipediaKummerVandiver.kummer_vandiver
Kummer–Vandiver conjecture states that for every prime $p$, the class number of the maximal real subfield of $\mathbb{Q}(\zeta_p)$ is not divisible by $p$.
Exact formal statement
∀ (p : PNat),
p.Prime →
Not
(Dvd.dvd.{0} p.val
(NumberField.classNumber.{0}
(Subtype.{1} fun x =>
Membership.mem.{0, 0} (NumberField.maximalRealSubfield.{0} (CyclotomicField.{0} p.val Rat)) x)))This target is a formal statement, not a proof of the problem.
Environment availability: available.