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Bennett Cleared Residue remove node

Proved
D1Bound5.bennettClearedResidue_remove_node

by tp · Oct 23, 2026 · Mathlib 0df444a (Lean v4.33.1)

diophantine-tuplesnumber-theory

Exact arbitrary-order node removal, including the parameter shift ν-k and the full column scaling. No determinant formula is assumed.

Preamble
import Lean.Elab.Tactic.Omega
import Mathlib.Algebra.Polynomial.BigOperators
import Mathlib.Algebra.Polynomial.Degree.Operations
import Mathlib.RingTheory.PowerSeries.Binomial
import Mathlib.Tactic.Ring
import Definitions.Def_D1Bound5_BennettClearedResidues_Definitions

Formal statement
section
open Finset

namespace D1Bound5

variable {F : Type*} [Field F] [CharZero F]









section Nodes

variable {I : Type*} [DecidableEq I]










theorem _root_.D1Bound5.bennettClearedResidue_remove_node (s : Finset I) (a : I → F)
    (k : ℕ) (ν : F) (i j q : I) (hq : q ∈ s)
    (hiq : i ≠ q) (hjq : j ≠ q) (ha : a j ≠ a q) :
    (bennettClearedResidue s a k ν i j).eval (-a q) =
      ((a j - a q)⁻¹) ^ k *
        (bennettClearedResidue (s.erase q) a k (ν - (k : F)) i j).eval (-a q) := by sorry







end Nodes

end D1Bound5
end
Source
D1Bound5/BennettClearedResidues.lean, lines 116-131, SHA-256 ec76df5d4e2c4d6b07d0919f3d7f1eca9b85a57c220d930e6ae87c93827d8f29. Project: https://github.com/tomislav-math/d1-bound5-lean

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