theorem
proved
term proof
twin_prime_threehundredfortyseven_threehundredfortynine
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formal statement (Lean)
2613theorem twin_prime_threehundredfortyseven_threehundredfortynine : Prime 347 ∧ Prime 349 ∧ 349 = 347 + 2 := by native_decide
proof body
Term-mode proof.
2614
2615/-- (419, 421) is a twin prime pair. -/