theorem
proved
term proof
kernel_perturbation_eq_kernel_of_ge
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formal statement (Lean)
265theorem kernel_perturbation_eq_kernel_of_ge
266 (P : KernelParams) {k_min k : ℝ} (a : ℝ) (h : k_min ≤ k) :
267 kernel_perturbation P k_min k a = kernel P k a := by
proof body
Term-mode proof.
268 unfold kernel_perturbation kernel
269 have hmax : max k_min k = k := max_eq_right h
270 rw [hmax]
271
272/-- The perturbation kernel collapses to the IR-saturated value when
273 `k ≤ k_min`. -/