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

four_almost_prime_onehundredthirtysix

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)

2269theorem four_almost_prime_onehundredthirtysix : isFourAlmostPrime 136 = true := by native_decide

proof body

Term-mode proof.

2270
2271/-- 140 = 2² × 5 × 7 is 4-almost prime. -/

depends on (5)

Lean names referenced from this declaration's body.