def
definition
def or abbrev
IsBigOPower
show as:
view Lean formalization →
formal statement (Lean)
26def IsBigOPower (f : ℝ → ℝ) (n : ℕ) : Prop :=
proof body
Definition body.
27 IsBigO f (fun x => x ^ n) 0
28
29/-- f = o(x^n) as x → 0. -/