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Small Pair Graph 26 excludes three full ring

Proved
D1Bound5.smallPairGraph_26_excludes_three_full_ring

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

diophantine-tuplesnumber-theory

Complete large-extension triangle exclusion for pair-table row 26.

Preamble
import Init
import Mathlib.Algebra.Order.Ring.Abs
import Mathlib.Algebra.QuadraticAlgebra.Basic
import Mathlib.Algebra.Ring.Basic
import Mathlib.Algebra.Ring.Equiv
import Mathlib.Analysis.Complex.Basic
import Mathlib.Analysis.Complex.Norm
import Mathlib.Analysis.Complex.Polynomial.Basic
import Mathlib.Data.Finset.Card
import Mathlib.Data.Finset.Prod
import Mathlib.Data.Int.GCD
import Mathlib.Data.Int.Interval
import Mathlib.Data.Int.Sqrt
import Mathlib.Data.List.Basic
import Mathlib.Data.List.Range
import Mathlib.Data.ZMod.Basic
import Mathlib.LinearAlgebra.Dimension.Free
import Mathlib.NumberTheory.NumberField.InfinitePlace.TotallyRealComplex
import Mathlib.NumberTheory.NumberField.Norm
import Mathlib.Tactic.FieldSimp
import Mathlib.Tactic.Linarith
import Mathlib.Tactic.LinearCombination
import Mathlib.Tactic.Ring
import Definitions.Def_D1Bound5_Coordinates_Definitions
import Definitions.Def_D1Bound5_IsD1Tuple
import Definitions.Def_D1Bound5_PairExtensionCore_Definitions
import Definitions.Def_D1Bound5_SmallPairGraphInputs26_Definitions_001

Formal statement
section
open scoped NumberField
open Module

namespace D1Bound5
open QuadInt


theorem _root_.D1Bound5.smallPairGraph_26_excludes_three_full_ring
    {K : Type*} [Field K] [NumberField K] [NumberField.IsTotallyComplex K]
    (hK : finrank ℚ K = 2) (phi : K →+* ℂ)
    (e : QuadInt 1 1 ≃+* 𝓞 K) (t : Fin 3 → QuadInt 1 1)
    (ht : IsD1Tuple t)
    (hpair : ∀ i, PairExtension smallPairA_26 smallPairB_26 (t i))
    (hlarge : ∀ i, 9 ≤ (t i).norm) (hbound : ∀ i, (t i).norm ≤ 10^1100)
    (hneA : ∀ i, t i ≠ smallPairA_26) (hneB : ∀ i, t i ≠ smallPairB_26) : False := by sorry

end D1Bound5
end
Source
D1Bound5/SmallPairGraphFullRing26.lean, lines 9-29, SHA-256 3217c1b6bc6d1bc1acd6a0dfa008fda2f6f6d37d47d4568fb7cdcac4e81949f9. Project: https://github.com/tomislav-math/d1-bound5-lean

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