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def definition def or abbrev

potential_action

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formal statement (Lean)

  48noncomputable def potential_action
  49  (φ : ScalarField) (m_squared : ℝ) (g : MetricTensor) (vol : VolumeElement) : ℝ :=

proof body

Definition body.

  50  (m_squared / 2) * integrate_scalar (field_squared φ) g vol
  51
  52/-- Integration is linear (finite weighted sum).
  53    STATUS: PROVED — Linearity of finite sums. -/

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depends on (20)

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