Is "i <->k / =" notationally equivalent to i <=> k?
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is just means that i'm renaming the dummy indices
End of conversation
New conversation -
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"Anti-symmetric tensor times symmetric tensor" =A_[ij]*S_(ij) =1/2(A_ij-A_ji)*1/2(S_ij+S_ji)=0 Since the double indices i, i and j,j are dummies ;-)
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