exact redistribute j k
case a.right
ℕ : Type
inst✝ : Natural ℕ
q p n m k j : ℕ
qn_pm : ℕ := q * n + p * m
qm_pn : ℕ := q * m + p * n
nk_mj : ℕ := n * k + m * j
nj_mk : ℕ := n * j + m * k
redistribute : ∀ (x y : ℕ), (q * n + p * m) * x + (q * m + p * n) * y ≃ q * (n * x + m * y) + p * (n * y + m * x)
⊢ qn_pm * j + qm_pn * k ≃ q * nj_mk + p * nk_mj
no goals