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theorem proved term proof

V_vacuum

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formal statement (Lean)

  47theorem V_vacuum : V 0 = 0 := by

proof body

Term-mode proof.

  48  unfold V
  49  rw [show (1 : ℝ) + 0 = 1 from by ring]
  50  exact Cost.Jcost_unit0
  51
  52/-- `V` is nonnegative throughout the physical domain `φ_inf > -1`. -/

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