ring_nf
𝕜 : Type u_1
E : Type u_2
inst✝³ : NontriviallyNormedField 𝕜
inst✝² : NormedAlgebra 𝕜 ℝ
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
x dx : ℝ
⊢ 2 * ↑π * ↑dx * (I * ↑(fourierChar (Multiplicative.ofAdd x))) =
    2 * ↑π * I * ↑(fourierChar (Multiplicative.ofAdd x)) * ↑dx
no goals