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## Main Question or Discussion Point

Hi guys

The fermionic creating and annihiliations operators: Do they satisfy

[tex]

c_{i,\sigma }^\dag c_{i,\sigma }^{} = - c_{i,\sigma }^{} c_{i,\sigma }^\dag

[/tex]

for some quantum number

The fermionic creating and annihiliations operators: Do they satisfy

[tex]

c_{i,\sigma }^\dag c_{i,\sigma }^{} = - c_{i,\sigma }^{} c_{i,\sigma }^\dag

[/tex]

for some quantum number

*i*and spin σ, i.e. do they commute?
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