refine ContinuousAt.comp (g := ofReal) RCLike.continuous_ofReal.continuousAt ?_
case neg.e_a.refine_3
ψ : ℝ → ℝ
diffΨ : ContDiff ℝ 1 ψ
ψpos : ∀ (x : ℝ), 0 ≤ ψ x
suppΨ : support ψ ⊆ Icc (1 / 2) 2
mass_one : ∫ (x : ℝ) in Ioi 0, ψ x / x = 1
X : ℝ
X_pos : 0 < X
ε : ℝ
εpos : 0 < ε
n : ℕ
n_zero : ¬n = 0
n_pos : 0 < n
⊢ ContinuousAt (fun x => ↑(Smooth1 ψ ε x)) (↑n / X)
case neg.e_a.refine_3
ψ : ℝ → ℝ
diffΨ : ContDiff ℝ 1 ψ
ψpos : ∀ (x : ℝ), 0 ≤ ψ x
suppΨ : support ψ ⊆ Icc (1 / 2) 2
mass_one : ∫ (x : ℝ) in Ioi 0, ψ x / x = 1
X : ℝ
X_pos : 0 < X
ε : ℝ
εpos : 0 < ε
n : ℕ
n_zero : ¬n = 0
n_pos : 0 < n
⊢ ContinuousAt (fun x => Smooth1 ψ ε x) (↑n / X)