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theorem proved term proof

weak_prime_twentythree

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formal statement (Lean)

2759theorem weak_prime_twentythree : Prime 23 ∧ Prime 19 ∧ Prime 29 ∧ 23 < (19 + 29) / 2 := by native_decide

proof body

Term-mode proof.

2760
2761/-- 31 is a weak prime: 31 < (29 + 37)/2 = 33. -/

depends on (5)

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