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Source labels openChecked July 26, 2026

Erdős ProblemsNumber theory

Erdős Problem 932

Let pkp_k denote the kkth prime. For infinitely many rr there are at least two integers pr<n<pr+1p_r < n < p_{r+1} all of whose prime factors are <pr+1pr< p_{r + 1} - p_r.

Mathematical statement

Let pkp_k denote the kkth prime. For infinitely many rr there are at least two integers pr<n<pr+1p_r < n < p_{r+1} all of whose prime factors are <pr+1pr< p_{r + 1} - p_r.

Statement source: Erdős Problems statement material

Statement terms: Source-specific

Source-specific terms. Therefore does not assert reuse rights beyond attributed display.

Statement artifacts, not proofs

These records expose exact Lean propositions and statement-only wrappers. Defining a proposition does not supply a proof of it. A placeholder-bearing target also contains no proof. Elaboration checks syntax and types; it does not certify that a formalization perfectly captures every nuance of the informal problem.

Pinned Lean formulation 1

erdos_932

Canonical source
Complete statement target, proof intentionally absentLean 4
theorem erdos_932 :    { r :  | 2  (Finset.Ioo (r.nth Nat.Prime) (r.succ.nth Nat.Prime) |>.filter      (fun m => m.maxPrimeFac < r.succ.nth Nat.Prime - r.nth Nat.Prime)).card }.Infinite := by  sorry
Statement source
Formal Conjectures
Lean version
v4.27.0
Placeholder
Present; no proof artifact
Source evidence
Pinned source index
Fidelity review
Community formulation

References