exact DeltaSpikeNonNeg_of_NonNeg Ψnonneg ypos εpos
𝕂 : Type u_1
inst✝ : _root_.RCLike 𝕂
Ψ : ℝ → ℝ
Ψnonneg : ∀ x > 0, 0 ≤ Ψ x
ε x : ℝ
xpos : 0 < x
εpos : 0 < ε
y : ℝ
ypos : y > 0
⊢ 0 ≤ DeltaSpike Ψ ε y
no goals