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theorem proved term proof

spectral_index_red_tilt

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formal statement (Lean)

  90theorem spectral_index_red_tilt (N_e : ℝ) (hN : 0 < N_e) :
  91    rs_spectral_index N_e < 1 := by

proof body

Term-mode proof.

  92  unfold rs_spectral_index
  93  linarith [div_pos two_pos hN]
  94
  95/-! ## Sound Horizon -/
  96
  97/-- **RS DRAG EPOCH REDSHIFT**: z_drag ≈ 1060.
  98    This is where baryons decouple from photons (Saha equation). -/

depends on (6)

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