norm_num
a b c : ℤα
z : ℂ
hre : (z - OneHom.toFun (↑↑inclusion) (nearestℤα z)).re ^ 2 ≤ 2⁻¹ ^ 2
him : (z - OneHom.toFun (↑↑inclusion) (nearestℤα z)).im ^ 2 ≤ (4⁻¹ * rt7) ^ 2
⊢ ↑(ofNat 1) / ↑4 + 7 * (↑(ofNat 1) / ↑16) < 1
no goals