theorem sectorGeneralCurvature_pos
{N : ℕ} (e : WeightedNSectorEconomy N) (n : Fin N)
(hρ : e.ρ n < 1) (hJ : 2 ≤ e.J n)
(hH : sectorHerfindahl e n < 1) :
0 < sectorGeneralCurvature e n := by
unfold sectorGeneralCurvature
exact gen_quadruple_K_pos hJ hρ (e.ha_pos n) (e.ha_sum n) hH## Weighted N-Sector Economy