`BookProof.ChapterPauliFundamental.G_traceOrth` (S T : Finset (Fin 4)) : (G S * (G T)ᵀ).trace = if S = T then 4 else 0

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`BookProof.ChapterPauliFundamental.G_traceOrth` (S T : Finset (Fin 4)) : (G S * (G T)ᵀ).trace = if S = T then 4 else 0 · Prove2Me