[en] We have used domain wall fermions to calculate K → π and K → 0 matrix elements which can be used to study the ΔI = 1/2 rule for K decays in the Standard Model. Nonlinearities in the ΔI = 3/2 matrix elements due to chiral logarithms are explored and the subtractions needed for the ΔI = 1/2 matrix elements are discussed. Using renormalization factors calculated using non-perturbative renormalization then yields values for real A₀ and A₂. We present the details of our quenched 16³ x 32 x 16, β = 6.0, M₅ = 1.8 simulation, where a previous calculation showed that the finite L_s chiral symmetry breaking effects are small (m_res ∼ 4 MeV)