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Bennett Two Cleared Entry zero integral

Proved
D1Bound5.bennettTwoClearedEntry_zero_integral

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

diophantine-tuplesnumber-theory

Integrality of the entire column-zero entry, proved from its actual finite residue expansion.

Preamble
import Lean.Elab.Tactic.Omega
import Mathlib.Algebra.BigOperators.Fin
import Mathlib.Algebra.BigOperators.NatAntidiagonal
import Mathlib.Algebra.Polynomial.BigOperators
import Mathlib.Algebra.Polynomial.Degree.Operations
import Mathlib.Combinatorics.Enumerative.Catalan.Basic
import Mathlib.RingTheory.Binomial
import Mathlib.RingTheory.PowerSeries.Binomial
import Mathlib.Tactic.LinearCombination
import Mathlib.Tactic.NormNum
import Mathlib.Tactic.Ring
import Definitions.Def_D1Bound5_BennettTwoIntegralEntries_Definitions

Formal statement
section
open Finset

namespace D1Bound5

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




















theorem _root_.D1Bound5.bennettTwoClearedEntry_zero_integral (S : Subring F)
    (a b c : F) (ha : a ∈ S) (hb : b ∈ S) (hc : c ∈ S)
    (ha0 : a ≠ 0) (hb0 : b ≠ 0) (k : ℕ) (hk : 1 ≤ k) (i : Fin 3) :
    ∃ q ∈ S, bennettTwoClearedEntry a b c k i 0 = 1 * q := by sorry









end D1Bound5
end
Source
D1Bound5/BennettTwoIntegralEntries.lean, lines 71-92, SHA-256 07d63d84699ae294fc3d395f046972fa36aa179a18de306e5f612beceaaf5f1b. Project: https://github.com/tomislav-math/d1-bound5-lean

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