Finite N2 height five regions

Proved

D1Bound5.finiteN2_height_five_regions

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

diophantine-tuplesnumber-theory

Actual ratio-refined height for the constructed finite family. The statement supplies no coefficient or height certificate: the integer rows and all five rational table margins are proved above.

Preamble

import Lean.Elab.Tactic.Omega
import Mathlib.Algebra.BigOperators.Fin
import Mathlib.Analysis.Complex.Basic
import Mathlib.Analysis.Normed.Ring.Basic
import Mathlib.LinearAlgebra.Matrix.Determinant.Basic
import Mathlib.LinearAlgebra.Matrix.NonsingularInverse
import Mathlib.Tactic.Convert
import Mathlib.Tactic.FinCases
import Mathlib.Tactic.GCongr
import Mathlib.Tactic.Linarith
import Mathlib.Tactic.NormNum
import Mathlib.Tactic.Positivity
import Mathlib.Tactic.Ring
import Definitions.Def_D1Bound5_FiniteHomogeneousRatio_Definitions
import Definitions.Def_D1Bound5_FiniteN2Matrix_Definitions
import Definitions.Def_D1Bound5_FiniteN2RatioHeight_Definitions

Formal statement

section
noncomputable section

namespace D1Bound5
















theorem _root_.D1Bound5.finiteN2_height_five_regions (region : Fin 5) (x y c : ℂ)
    (hy : y ≠ 0) (hxy : ‖x‖ ≤ fiveRegionAnchorRatio region*‖y‖)
    (hYC : 1000 ≤ ‖y‖*‖c‖) (i : Fin 3) :
    (101/100 : ℝ)*(‖finiteN2Left x y c i‖+‖finiteN2Right x y c i‖) <
      fiveRegionN2Height region*‖y‖^4*‖c‖^2 := by sorry

end D1Bound5
end

Source

D1Bound5/FiniteN2RatioHeight.lean, lines 67-91, SHA-256 acd86dd6afa56a2834a76abb67f2f38aa493cf97b505b550e022ae5087305669. Project: https://github.com/tomislav-math/d1-bound5-lean

View graph