theorem dilution_ratio_pos {r g : ℝ} {N : ℕ}
(hr : -1 < r) (hg : -1 < g) (hN : 0 < N) :
0 < wealthDilutionRatio r g N := by
simp only [wealthDilutionRatio]
apply div_pos (by linarith)
exact mul_pos (Nat.cast_pos.mpr hN) (by linarith)Fair Inheritance: Taxing Concentration, Not Transfer