The Meaning of Relativity / Four lectures delivered at Princeton University, May, 1921

by Albert Einstein

From this we arrive at the co-variant derivative of the co-variant vector by the same process as that which led to (71),

By interchanging the indices

and

, and subtracting, we get the skew-symmetrical tensor,

For the co-variant differentiation of tensors of the second and higher ranks we may use the process by which (75) was deduced. Let, for example, (