Verify (left[P^{2}, P_{mu} ight]=0) [Eq. (15.16)] and (left[P_{mu}, L_{ho sigma} ight]=ileft(eta_{mu ho} P_{sigma}-eta_{mu sigma} P_{ho} ight)) [Eq.

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Verify \(\left[P^{2}, P_{\mu}\right]=0\) [Eq. (15.16)] and \(\left[P_{\mu}, L_{ho \sigma}\right]=i\left(\eta_{\mu ho} P_{\sigma}-\eta_{\mu \sigma} P_{ho}\right)\) [Eq. (15.14)].

Data from Eq 15.14

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Data from Eq 15.16

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