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def definition def or abbrev

scalarLaplacian

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formal statement (Lean)

  52def scalarLaplacian {siteCount : ℕ} (Λ : LatticeTopology siteCount) (h : ℝ)
  53    (f : ScalarField siteCount) (x : Fin siteCount) : ℝ :=

proof body

Definition body.

  54  ∑ j : Axis, forwardDiff Λ h (backwardDiff Λ h f j) j x
  55

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depends on (7)

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