Equation Icon  𝒟 𝒜abc(t) = ∂𝒜abc(t), 𝒟𝒜a1 ⋅⋅⋅a6(t) = ∂𝒜a1⋅⋅⋅a6(t) + 10𝒜 [a1a2a3(t)∂𝒜a4a5a6](t), 𝒟𝒜a |b1⋅⋅⋅b8(t) = ∂𝒜a|b1⋅⋅⋅b8(t) + 42𝒜 ⟨ab1b2(t)∂𝒜 b3⋅⋅⋅b8⟩(t) − 42∂𝒜 ⟨ab1b2(t)𝒜 b3⋅⋅⋅b8⟩(t), (9.126 ) +280 𝒜⟨ab1b2(t)𝒜b3b4b5(t)∂𝒜 b6b7b8⟩(t),