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Small Pair classified 1 7

Proved
D1Bound5.smallPair_classified_1_7

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

diophantine-tuplesnumber-theory

Auxiliary result smallPair_classified_1_7 in the proof of the bound five for Diophantine D(1) sets in imaginary quadratic integer rings. The formal statement specifies its hypotheses and conclusion; a mathematical prose description remains to be supplied.

Preamble
import Mathlib.Algebra.QuadraticAlgebra.Basic
import Mathlib.Algebra.Ring.Basic
import Mathlib.Algebra.Ring.Equiv
import Mathlib.Analysis.Complex.Norm
import Mathlib.Data.Fin.Tuple.Sort
import Mathlib.Data.Finset.Card
import Mathlib.Data.Finset.Prod
import Mathlib.Data.Fintype.EquivFin
import Mathlib.Data.Int.GCD
import Mathlib.Data.Int.Interval
import Mathlib.Data.Int.Sqrt
import Mathlib.LinearAlgebra.Dimension.Free
import Mathlib.NumberTheory.NumberField.InfinitePlace.TotallyRealComplex
import Mathlib.NumberTheory.NumberField.Norm
import Mathlib.Tactic.IntervalCases
import Mathlib.Tactic.Linarith
import Mathlib.Tactic.LinearCombination
import Definitions.Def_D1Bound5_Coordinates_Definitions
import Definitions.Def_D1Bound5_SmallPairClassificationCheck_Definitions
import Definitions.Def_D1Bound5_SmallPairClassificationData_Definitions

Formal statement
section
namespace D1Bound5
open QuadInt
set_option maxRecDepth 32768
set_option maxHeartbeats 6000000









































































































































theorem _root_.D1Bound5.smallPair_classified_1_7
    (a b : QuadInt 1 7) (ha : a ≠ 0) (hb : b ≠ 0) (hab : a ≠ b)
    (hroot : ∃ r, r*r = a*b+1) (hnondeg : a*b+1 ≠ 0)
    (hNa : a.norm ≤ 8) (hNb : b.norm ≤ 8) :
    pairCoordinates a b ∈ smallPairTable 1 7 := by sorry







end D1Bound5
end
Source
D1Bound5/SmallPairClassificationData.lean, lines 536-545, SHA-256 0479960d253f413b6231376d75e08d6895df49dd0720f2623e327fcef62f8410. Project: https://github.com/tomislav-math/d1-bound5-lean

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