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Initializing...
`BookProof.TruncationGapLift.ym_fock_gap_of_band_and_tail` {m : ℕ} {mu eps lo hi : ℝ} (heps : 0 ≤ eps) (hmueps : 0 ≤ mu - eps) (hband : ritzInf (ymHamiltonian (coreRepBasis e) fabc · Prove2Me