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theorem proved term proof

first_peak_wavenumber

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formal statement (Lean)

 125theorem first_peak_wavenumber (r_s : ℝ) (hr : r_s = sound_horizon_approx) :
 126    bao_peak_wavenumber 1 r_s = Real.pi / sound_horizon_approx := by

proof body

Term-mode proof.

 127  subst hr
 128  unfold bao_peak_wavenumber
 129  simp [Nat.cast_one]
 130
 131/-- BAO peaks are evenly spaced in k-space. -/

depends on (2)

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