_f__{2 3}, _f__{3 1}, _f__{1 2}, _f__{1 4}, _f__{2 4}, _f__{3 4}.
for
m_{_x_}, m_{_y_}, m_{_z_}, -ie_{_x_}, -ie_{_y_}, -ie_{_z_}.
_i.e._, the components of m and (-_i.e._) along the three axes; now if
we take any two indices (h. k) out of the series
3, 4), _f__{_k h_} = -_f__{_k h_},