`BookProof.HermiteBandHigher.gpow_add` (m m' n : ℕ) : gpow (m + m') n = gpow m n * gpow m' n

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`BookProof.HermiteBandHigher.gpow_add` (m m' n : ℕ) : gpow (m + m') n = gpow m n * gpow m' n · Prove2Me