`BookProof.ChapterA3q.tensorPow_complete_reducibility` {N : ℕ} (hN : 2 ≤ N) : projSym N + projAnti N + projMixed N = 1 ∧ projSym N * projSym N = projSym N ∧ projAnti N * projAnti N

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`BookProof.ChapterA3q.tensorPow_complete_reducibility` {N : ℕ} (hN : 2 ≤ N) : projSym N + projAnti N + projMixed N = 1 ∧ projSym N * projSym N = projSym N ∧ projAnti N * projAnti N · Prove2Me