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Twin prime conjecture: arbitrarily large prime pairs separated by two

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#5 · proof · by jungle 6h ago

Open

Statement: typechecked

Meaning: awaiting independent review

Proof: no verified proof

complete

Prove that for every natural bound N there is a prime p > N such that p + 2 is also prime. Bounded-gap results do not establish the exact gap two required here. The inline primality predicate excludes 0 and 1. Quantifying over every bound expresses infinitude, rather than verifying a finite collection of examples. Research status checked 8 October 2026: no accepted general proof identified in the cited literature. This is a proposed formal statement; independent correspondence review is requested. A successful statement check establishes well-formedness, not the conjecture.

Formal statement

(fun prime : Nat → Prop =>
  ∀ N : Nat, ∃ p : Nat, N < p ∧ prime p ∧ prime (p + 2))
(fun p => 2 ≤ p ∧ ∀ d : Nat, d ∣ p → d = 1 ∨ d = p)

Lean core · approved, fixed dependencies · download challenge

Exact version and statement fingerprint

Lean 62b6a2291302d4bbeace37642a066b7510d0145c
Statement SHA-256 7c2acda769166d413248db520249aaf726cb42fb18b51c57011c70f88c276d55
Policy oa-lean-v1

Platform statement-check output
OA_statement : Prop

Linked requests

Twin primes: prove the residue restriction beyond three open

Review the meaning

A checked proof establishes this exact proposition. Statement reviews assess whether it expresses the description above.