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Full ring finite P inequality

Proved
D1Bound5.full_ring_finiteP_inequality

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

diophantine-tuplesnumber-theory

The actual finite P matrix supplies a nonzero integral form on five distinct D(1) entries, with its explicit height and residual bounds. No row-selection or root-lifting premise remains.

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.Algebra.QuadraticAlgebra.Basic
import Mathlib.Algebra.Ring.Basic
import Mathlib.Algebra.Ring.Equiv
import Mathlib.Analysis.Analytic.Binomial
import Mathlib.Analysis.Complex.Basic
import Mathlib.Analysis.Complex.Norm
import Mathlib.Analysis.Normed.Ring.Basic
import Mathlib.Analysis.SpecialFunctions.Pow.Real
import Mathlib.Analysis.SpecificLimits.Normed
import Mathlib.Combinatorics.Enumerative.Catalan.Basic
import Mathlib.Data.Finset.Card
import Mathlib.Data.Finset.Insert
import Mathlib.Data.Int.GCD
import Mathlib.Data.Sym.Basic
import Mathlib.Data.Sym.Card
import Mathlib.LinearAlgebra.Dimension.Free
import Mathlib.LinearAlgebra.Lagrange
import Mathlib.LinearAlgebra.Matrix.Determinant.Basic
import Mathlib.LinearAlgebra.Matrix.NonsingularInverse
import Mathlib.NumberTheory.NumberField.InfinitePlace.TotallyRealComplex
import Mathlib.NumberTheory.NumberField.Norm
import Mathlib.RingTheory.Binomial
import Mathlib.RingTheory.MvPolynomial.Symmetric.Defs
import Mathlib.RingTheory.PowerSeries.Binomial
import Mathlib.Tactic.FieldSimp
import Mathlib.Tactic.FinCases
import Mathlib.Tactic.GCongr
import Mathlib.Tactic.Linarith
import Mathlib.Tactic.LinearCombination
import Mathlib.Tactic.NormNum
import Mathlib.Tactic.Positivity
import Mathlib.Tactic.Ring
import Definitions.Def_D1Bound5_IsD1

Formal statement
section
open scoped NumberField
open Module

namespace D1Bound5


theorem _root_.D1Bound5.full_ring_finiteP_inequality
    {K : Type*} [Field K] [NumberField K] [NumberField.IsTotallyComplex K]
    (hK : finrank ℚ K = 2) (phi : K →+* ℂ)
    {S : Finset (𝓞 K)} (hS : IsD1 S) (a : Fin 3 → 𝓞 K) (c d : 𝓞 K)
    (haS : ∀ j, a j ∈ S) (hcS : c ∈ S) (hdS : d ∈ S)
    (hinj : Function.Injective a) (hac : ∀ j, a j ≠ c)
    (had : ∀ j, a j ≠ d) (hcd : c ≠ d)
    (hmon : Monotone (fun j => ‖phi (a j : K)‖))
    (hCT : 200*‖phi (a 2 : K)‖ ≤ ‖phi (c : K)‖)
    (hCD : ‖phi (c : K)‖ ≤ ‖phi (d : K)‖)
    (hAC : 1000 ≤ ‖phi (a 0 : K)‖*‖phi (c : K)‖) :
    ∃ z : 𝓞 K, z^2 = c*d+1 ∧
      1 < 2400*max (‖phi (a 1 : K)‖*‖phi (a 2 : K)‖^3)
          (‖phi (a 1 : K)‖^3*‖phi (a 2 : K)‖^2)*‖phi (c : K)‖^3/‖phi (z : K)‖+
        3*‖phi (a 2 : K)‖^2*‖phi (z : K)‖/
          (‖phi (a 0 : K)‖^3*‖phi (c : K)‖^5) := by sorry

end D1Bound5
end
Source
D1Bound5/FinitePFullRing.lean, lines 9-94, SHA-256 1e23f4ae44d5c73925ea0b230dd55561e20e60c4857c38024a6b01f043853222. Project: https://github.com/tomislav-math/d1-bound5-lean

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