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theorem proved term proof

safe_prime_five

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formal statement (Lean)

1408theorem safe_prime_five : Prime 5 ∧ Prime ((5 - 1) / 2) := by native_decide

proof body

Term-mode proof.

1409
1410/-- 7 is a safe prime: (7-1)/2 = 3 is prime. -/

depends on (5)

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