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theorem proved term proof

prime_quadruplet_onehundredninetyone

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formal statement (Lean)

1593theorem prime_quadruplet_onehundredninetyone : Prime 191 ∧ Prime 193 ∧ Prime 197 ∧ Prime 199 := by native_decide

proof body

Term-mode proof.

1594
1595/-! ### Primes p ≡ 3 (mod 4) — not expressible as sum of two squares -/
1596
1597/-- 3 ≡ 3 (mod 4). -/

depends on (9)

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