`BookProof.ChapterA3m.swap23_kronecker` (A B C : Matrix (Fin 4) (Fin 4) ℂ) : swap23 * ((A ⊗ₖ B) ⊗ₖ C) = ((A ⊗ₖ C) ⊗ₖ B) * swap23

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`BookProof.ChapterA3m.swap23_kronecker` (A B C : Matrix (Fin 4) (Fin 4) ℂ) : swap23 * ((A ⊗ₖ B) ⊗ₖ C) = ((A ⊗ₖ C) ⊗ₖ B) * swap23 · Prove2Me