pith. machine review for the scientific record. sign in
theorem proved term proof

weak_prime_eightythree

show as:
view Lean formalization →

No prose has been written for this declaration yet. The Lean source and graph data below render without it.

generate prose now

formal statement (Lean)

2777theorem weak_prime_eightythree : Prime 83 ∧ Prime 79 ∧ Prime 89 ∧ 83 < (79 + 89) / 2 := by native_decide

proof body

Term-mode proof.

2778
2779/-- 89 is a weak prime: 89 < (83 + 97)/2 = 90. -/

depends on (5)

Lean names referenced from this declaration's body.