Equation Icon  B ′′ = [Ω ′], αβ [ α β ] Bα′β′γ′ = Ωα ′β;γ′ − Bα′β′;γ′, [ ] 1 ′ B α′β′γ′δ′ = Ωα ′β;γ′δ′ + --Bα′𝜖′R 𝜖β′γ′δ′ − Bα′β′;γ′δ′ − B α′β′γ′;δ′ − B α′β′&#x0 2