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lemma proved term proof

actionJ_def

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formal statement (Lean)

  72@[simp] lemma actionJ_def {a b : ℝ} (γ : AdmissiblePath a b) :
  73    actionJ γ = ∫ t in a..b, Jcost (γ.toFun t) := rfl

proof body

Term-mode proof.

  74
  75/-- The action of any admissible path is non-negative. -/

depends on (12)

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