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Full ring unit pair arithmetic model

Proved
D1Bound5.full_ring_unit_pair_arithmetic_model

by tp · Oct 24, 2026 · Mathlib 0df444a (Lean v4.33.1)

diophantine-tuplesnumber-theory

Existence of the combined model for the full integer ring, including the half-integral basis. All arithmetic properties are proved here.

Preamble
import Lean.Elab.Tactic.Omega
import Mathlib.Algebra.Group.Int.Units
import Mathlib.Algebra.Polynomial.Monic
import Mathlib.Algebra.QuadraticAlgebra.Basic
import Mathlib.Algebra.Ring.Basic
import Mathlib.Algebra.Ring.Equiv
import Mathlib.Algebra.Squarefree.Basic
import Mathlib.Analysis.Complex.Norm
import Mathlib.Data.Finset.Card
import Mathlib.Data.Fintype.EquivFin
import Mathlib.Data.Int.GCD
import Mathlib.Data.Int.Sqrt
import Mathlib.LinearAlgebra.Dimension.Free
import Mathlib.NumberTheory.NumberField.InfinitePlace.TotallyRealComplex
import Mathlib.NumberTheory.NumberField.Norm
import Mathlib.Tactic.GCongr
import Mathlib.Tactic.IntervalCases
import Mathlib.Tactic.Linarith
import Mathlib.Tactic.LinearCombination
import Mathlib.Tactic.NormNum
import Mathlib.Tactic.Ring
import Definitions.Def_D1Bound5_UnitPairArithmeticModel_Definitions

Formal statement
section
open scoped NumberField QuadraticAlgebra
open Module

namespace D1Bound5










theorem _root_.D1Bound5.full_ring_unit_pair_arithmetic_model
    {K : Type*} [Field K] [NumberField K] [NumberField.IsTotallyComplex K]
    (hK : finrank ℚ K = 2) : Nonempty (UnitPairArithmeticModel (𝓞 K)) := by sorry





end D1Bound5
end
Source
D1Bound5/UnitPairArithmeticModel.lean, lines 91-106, SHA-256 31a0d8a0d8b8fb8a155f4aa1757650bb63a56b886b27a1d3631ee72dcc025fb7. Project: https://github.com/tomislav-math/d1-bound5-lean

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