import Mathlib /- Original: k=1 ≤ ∞ X e−C3 N δ -/ theorem eq_089337bb135cc24e (C3 : ℕ) (N : ℕ) (X : ℕ) (e : ℕ) (k : ℕ) (δ : ℕ) : k=1 ≤ ∞ X e-C3 N δ := by omega