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theorem proved term proof

moon_J_cost_zero

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formal statement (Lean)

 102theorem moon_J_cost_zero : Cost.Jcost moon_resonance_pq = 0 := by

proof body

Term-mode proof.

 103  unfold moon_resonance_pq
 104  exact Cost.Jcost_unit0
 105
 106/-! ## §3. Mercury: 3/2 sits near φ -/
 107
 108/-- Mercury's `p/q = 3/2` is near `φ ≈ 1.618`; the deviation is
 109`|φ - 3/2| = J(φ) ≈ 0.118`. -/

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