Dirac has equation 3.4 as:(adsbygoogle = window.adsbygoogle || []).push({});

x[itex]^{\lambda}_{,\mu}[/itex]x[itex]^{\mu}_{,\nu}[/itex]=g[itex]^{\lambda}_{\nu}[/itex]

Shouldn't that have a 4 on the right side?

x[itex]^{\lambda}_{,\mu}[/itex]x[itex]^{\mu}_{,\nu}[/itex]=(4?)g[itex]^{\lambda}_{\nu}[/itex]

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# Tensor equation in Dirac's 1975 book

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