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theorem proved term proof

harmonic5_matches

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formal statement (Lean)

 210theorem harmonic5_matches : |schumannRS 5 - 33.8| < 0.06 := by

proof body

Term-mode proof.

 211  rw [harmonic5_eq, abs_lt]
 212  exact ⟨by nlinarith [phi_gt_1618], by nlinarith [phi_lt_1619]⟩
 213
 214/-- All five Schumann harmonics match within 0.06 Hz (worst case: 5th harmonic). -/

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depends on (6)

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