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structure definition def or abbrev

DFTHarmonicSpectrumCert

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formal statement (Lean)

 109structure DFTHarmonicSpectrumCert where
 110  modes_eight : Fintype.card DFTMode = 8
 111  carrier_in_theta_band : 8 < carrierFreq ∧ carrierFreq < 8.1
 112  all_modes_nonneg : ∀ k : DFTMode, 0 ≤ harmonicFrequency k
 113  mode_zero_dc : harmonicFrequency ⟨0, by decide⟩ = 0
 114  mode_seven_under_9 : harmonicFrequency ⟨7, by decide⟩ < 9
 115  comb_monotone : ∀ j k : DFTMode, j.val < k.val →
 116    harmonicFrequency j < harmonicFrequency k
 117

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