Cheat sheets/Gamma matrices

I = identity

Basic properties

 * $$\{\gamma^\mu,\gamma^\nu\}=2g^{\mu\nu}$$

Gamma matrices

 * $$\gamma^\mu \gamma_\mu = 4 I $$

Trace relations

 * $$\textrm{Tr}(\gamma^\mu \gamma^\nu) = 4 g^{\mu\nu} $$
 * $$\textrm{Tr}(\gamma^\mu \gamma^\nu \gamma^5) = 0 $$