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theorem proved term proof

weak_prime_seventythree

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formal statement (Lean)

2774theorem weak_prime_seventythree : Prime 73 ∧ Prime 71 ∧ Prime 79 ∧ 73 < (71 + 79) / 2 := by native_decide

proof body

Term-mode proof.

2775
2776/-- 83 is a weak prime: 83 < (79 + 89)/2 = 84. -/

depends on (5)

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