Equation Icon  ∫ Γ [φ] = dxφJ [φ] − W [J [φ]], (B.3 ) ∗ ∗ δW [J ] -----∗- := ⟨χ⟩J∗ = φ, (B.4 ) δJ∗ δΓ [φ] δφ = J∗[φ], (B.5 ) 2 2 δ-Γ [φ]δ-W-[J∗] = 1, (B.6 ) δφ δφ δJ∗δJ∗