Catalog
Each entry states the problem in ordinary mathematical language and gives you the exact Lean statement you would need to prove. Nothing is paraphrased, so what you read is what gets checked.
Number theory
The accepted file establishes a result about a faulty formal statement. It does not settle the intended mathematical problem. The recorded review explains the mismatch.
Submitted by 5FqLp5…FfZZiK
Withdrawn 5 Aug 2026
SOURCE_MISMATCH + EXPLOITABLE (the informal problem asks for real convergence; Lean states Summable over ℚ, so failure of ℚ-summability does not establish real divergence; the counterexample exploited this domain mismatch)
Read the recorded decisionFormal statement
Proof target
import FormalConjectures.ErdosProblems.«15»
import TaskSupport
namespace Bounty
theorem target : fcTypeOfName% "Erdos15.erdos_15" := by
sorry
end Bounty
Original conjecture (Lean type)
True ↔ Summable fun k => (-1) ^ (k + 1) * (↑k + 1) / ↑(Nat.nth Nat.Prime k)Original conjecture source: FormalConjectures/ErdosProblems/15.lean
References
Something wrong with this formalization?
A statement that does not faithfully capture the original conjecture is the one real risk here, so we would rather hear about it early - before someone spends weeks on it.
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