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during a calculation I got the following term:

[tex]\varepsilon^{i_1 \ldots i_n}\varepsilon_{j_1 \ldots j_n} (a_{i_1}^{j_1}\ldots a_{i_n}^{j_n})[/tex]

where [tex]\varepsilon[/tex] is the levi-civita symbol and [tex]a_i^j[/tex] are real numbers.

Is it possible to simplify that expression?

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# Expression with levi-civita symbol

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