theorem proved term proof

`mod6_nineteen_prime`

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formal statement (Lean)

1864theorem mod6_nineteen_prime : Prime 19 ∧ 19 % 6 = 1 := by native_decide

Term-mode proof.

1865
1866/-- 31 ≡ 1 (mod 6). -/

Lean names referenced from this declaration's body.