`BookProof.ChapterA3m.projSym3_spinGenDiag_comm` (μ ν : Fin 4) : projSym3 * spinGenDiag3 μ ν = spinGenDiag3 μ ν * projSym3

Initializing...

`BookProof.ChapterA3m.projSym3_spinGenDiag_comm` (μ ν : Fin 4) : projSym3 * spinGenDiag3 μ ν = spinGenDiag3 μ ν * projSym3 · Prove2Me