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

practical_twentyfour

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)

2149theorem practical_twentyfour : sigma 1 24 ≥ 24 := by native_decide

proof body

Term-mode proof.

2150
2151/-- σ_1(28) = 56 ≥ 28, so 28 is practical. -/

depends on (6)

Lean names referenced from this declaration's body.