Question: Prove the relation (9.2.10). Show that it is true for boson operators as well as fermion operators. [bb, bmbn ] = bmbnnm-bmbn Sn.m. (9.2.10)

Prove the relation (9.2.10). Show that it is true for boson operators as well as fermion operators.[bb, bmbn ] = bmbnnm-bmbn Sn.m. (9.2.10)

[bb, bmbn ] = bmbnnm-bmbn Sn.m. (9.2.10)

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