In Einstein notation, the duplication in the i index indicates the sum on i. The former is then denoted εijkεimn = δjmδkn − δjnδkm.CMD berhak atas interpretasi akhir acara ini dan berhak mengubah, menangguhkan, atau membatalkan acara kapan saja.ε i j ε i n = δ j n displaystyle varepsilon _ ij varepsilon ^ in = delta _ j ^ n The Levi-Civi