Equation Icon  gab(t) = gab(t,x0), 𝒟 𝒜abc(t) = Ftabc(t,x0), a1⋅⋅⋅a6 1- a1⋅⋅⋅a6bcde (9.148 ) 𝒟 𝒜 (t) = − 4!ɛ Fbcde(t,x0), 3 𝒟 𝒜a|b1⋅⋅⋅b8(t) = -ɛb1⋅⋅⋅b8cdCacd (x0 ), 2