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theorem proved term proof

safe_prime_seven

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formal statement (Lean)

1411theorem safe_prime_seven : Prime 7 ∧ Prime ((7 - 1) / 2) := by native_decide

proof body

Term-mode proof.

1412
1413/-- 11 is a safe prime: (11-1)/2 = 5 is prime. -/

depends on (5)

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