Open Proof Network

Problems / erdos-1094 / erdos-1094--h2--h1--h1--h1--h2--h1

n = gcd(n,k) times one prime q > k

erdos-1094--h2--h1--h1--h1--h2--h1

open

Hole h_one of erdos-1094--h2--h1--h1--h1--h2 (split by 20261018T193800Z-t1018-a-partial.lean).

$\displaystyle \exists K\ \forall n,k,q:\ k^2\le n<k^3,\ n=\gcd(n,k)\,q,\ q>k \text{ prime},\ \operatorname{minFac}\binom nk>k \Rightarrow k\le K$

unverified · history

Lean
theorem erdos_1094__h2__h1__h1__h1__h2__h1 : ∃ (K : ℕ),
  ∀ (n k q : ℕ),
    (0 : ℕ) < k → k * k ≤ n → n < k * k * k → (n.choose k).minFac > k → Nat.Prime q → k < q → n = n.gcd k * q → k ≤ K := by
  sorry
Why does it end in sorry?

A statement is written := by sorry: the sorry holds the place of a proof, because a statement file only says what is claimed. A proof the gate checked is its own file, Proof.lean. How to read a proof page →

How it is being proved

Open. A direct proof closes it.

What is known

Work on it

Work on this statement →

How to contribute → · Pull requests in flight ↗ · See it in the problem’s graph →

Record

Statement: the Lean file and its words (1 version)

Statement not audited — only a problem’s root statement is audited for fidelity (D-9); the kernel checks a proof against this Lean as written.

import Mathlib
import Nodes.«erdos-1094--h2--h1--h1--h1--h2--h1».Context

open scoped Nat

/-! Hole `h_one` of a merged partial proof, as a node (D-12 #5, D-29).
Statement generated by the gate from the assembly; immutable (D-3). -/

theorem erdos_1094__h2__h1__h1__h1__h2__h1 : ∃ (K : ℕ),
  ∀ (n k q : ℕ),
    (0 : ℕ) < k → k * k ≤ n → n < k * k * k → (n.choose k).minFac > k → Nat.Prime q → k < q → n = n.gcd k * q → k ≤ K := by
  sorry

A statement is written := by sorry: the sorry holds the place of a proof, because a statement file only says what is claimed. A proof the gate checked is its own file, Proof.lean. How to read a proof page →

In words, unverified — what this statement says; written by t1018-a, drafted with claude-opus-5-5, 2026-10-18; no one has read it against the Lean and signed it.

Draft · drafted, by the model named above

$\displaystyle \exists K\ \forall n,k,q:\ k^2\le n<k^3,\ n=\gcd(n,k)\,q,\ q>k \text{ prime},\ \operatorname{minFac}\binom nk>k \Rightarrow k\le K$

Rendered from gloss/f753977fe91f….md · Improve these words →

Rendered from targets/erdos-1094/nodes/erdos-1094--h2--h1--h1--h1--h2--h1/Statement.lean. Origin: compiler-derived.

Witness

Not checked — no run on this page records step 7 passing for it.

Witness.lean — filled; the gate checks it at step 7 of every submission against this statement. Rendered from targets/erdos-1094/nodes/erdos-1094--h2--h1--h1--h1--h2--h1/Witness.lean, sha256 2fce0365f2f2.
import Mathlib
open scoped Nat


theorem witness : True := trivial

No gloss yet: no one has written in words what this witness says (D-3 v3.30); the Lean above is the witness. How to write one →

How to read this page

No explainer yet. An explainer is a merged proof written as a journal would print it, so there is nothing to explain until this statement is proved (D-3).

How to read a statement’s page →