`BookProof.ChapterA3.paulisigma_trace` (μ ν : Fin 4) : (pauliσ μ * pauliσ ν).trace = if μ = ν then 2 else 0

Initializing...

`BookProof.ChapterA3.paulisigma_trace` (μ ν : Fin 4) : (pauliσ μ * pauliσ ν).trace = if μ = ν then 2 else 0 · Prove2Me