def
definition
def or abbrev
H_AczelClassification
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82def H_AczelClassification : Prop :=
proof body
Definition body.
83 ∀ (H : ℝ → ℝ),
84 H 0 = 1 →
85 Continuous H →
86 (∀ t u, H (t + u) + H (t - u) = 2 * H t * H u) →
87 ContDiff ℝ ⊤ H
88
89/-! ## §3 Integration Bootstrap: Continuous → C^∞ -/
90
91noncomputable section
92