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## Main Question or Discussion Point

I'm still struggling to understand, that why precisely have I not understood what the Dirac's field is.

hmhmh... okey, my question is this: Where does the anticommutation relation [itex]\{a_j,a_k^{\dagger}\}=\delta_{jk}[/itex] come from?

Is there something better than: "because the commutation relation would give absurd results, hence the relation must be an anticommutation relation"?

hmhmh... okey, my question is this: Where does the anticommutation relation [itex]\{a_j,a_k^{\dagger}\}=\delta_{jk}[/itex] come from?

Is there something better than: "because the commutation relation would give absurd results, hence the relation must be an anticommutation relation"?