theorem proved term proof

`prime_triplet_three_five_seven`

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formal statement (Lean)

1535theorem prime_triplet_three_five_seven : Prime 3 ∧ Prime 5 ∧ Prime 7 := by native_decide

Term-mode proof.

1536
1537/-- (5, 7, 11) are three primes with gap (2, 4). -/

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