Equation Icon  μ1...μn s [μ1 μn ] ε εν1...νn = (− 1) n!δ ν1 ⋅⋅⋅δ νn, (360 ) εμ1...μjμj+1...μnε = (− 1)s (n − j)!j! δ[μj+1 ⋅⋅⋅δ μn], (361 ) μμ1....μ..jμνj+1...νn s νj+1 νn ε1 nεμ1...μn = (− 1) n!, (362 )