Does anyone know/know where to find the proof of:
$$\epsilon_{ijk}\epsilon_{lmn} = +δ_{il}δ_{jm}δ_{kn} + δ_{im}δ_{jn}δ_{kl} + δ_{in}δ_{jl}δ_{km} −δ_{im}δ_{jl}δ_{kn} − δ_{il}δ_{jn}δ_{km} − δ_{in}δ_{jm}δ_{kl}$$
Thank you much
2026-03-25 12:55:16.1774443316
Levi Civita product proof
124 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail AtRelated Questions in KRONECKER-SYMBOL
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