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theorem proved term proof

venus_deviation_in_inverse_phi_sq_band

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formal statement (Lean)

 149theorem venus_deviation_in_inverse_phi_sq_band :
 150    0.22 < phi_cubed - venus_resonance_pq ∧
 151    phi_cubed - venus_resonance_pq < 0.24 := by

proof body

Term-mode proof.

 152  unfold venus_resonance_pq
 153  have h := phi_cubed_band
 154  refine ⟨?_, ?_⟩ <;> linarith
 155
 156/-! ## §5. The canonical first-φ-step deviation ceiling -/
 157
 158/-- The canonical golden-section J-cost ceiling. -/

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