Equation Icon  ∂ ∫ ---Γ (n)(x1, ...,xn; ¯χ) = dy Γ (n)(x1,...,xn,y; ¯χ), ∂¯χ | (B.20 ) (n) -----δΓ [φ; ¯χ-]--|| with Γ (x1, ...,xn; ¯χ) = δ φ(x )...δφ (x )| . 1 n φ=0