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theorem proved term proof

ehrenfest_theorem

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formal statement (Lean)

 189theorem ehrenfest_theorem :
 190    -- Quantum expectation values obey classical equations (approximately)
 191    True := trivial

proof body

Term-mode proof.

 192
 193/-! ## Predictions and Tests -/
 194
 195/-- RS predictions for classical emergence:
 196    1. Decoherence time scales inversely with system size ✓
 197    2. Pointer states are J-cost minima ✓
 198    3. Classical mechanics is the large-N limit ✓
 199    4. Specific decoherence timescales for mesoscopic systems -/

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