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One Small Cutoff Row — overlaps at real

Proved
D1Bound5.OneSmallCutoffRow.overlaps_at_real

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

diophantine-tuplesnumber-theory

Every strict rational overlap at the cutoff remains strict for all larger real squared fourth moduli.

Preamble
import Mathlib.Algebra.QuadraticAlgebra.Basic
import Mathlib.Algebra.Ring.Basic
import Mathlib.Algebra.Ring.Equiv
import Mathlib.Data.Finset.Card
import Mathlib.Data.Finset.Prod
import Mathlib.Data.Int.Interval
import Mathlib.Data.Int.Sqrt
import Mathlib.Data.List.Range
import Mathlib.Data.Real.Basic
import Mathlib.Tactic.IntervalCases
import Mathlib.Tactic.Linarith
import Mathlib.Tactic.LinearCombination
import Definitions.Def_D1Bound5_OneSmallCutoffArithmetic_Definitions_001
import Definitions.Def_D1Bound5_OneSmallRows_Definitions

Formal statement
section
namespace D1Bound5


theorem _root_.D1Bound5.OneSmallCutoffRow.overlaps_at_real (r : OneSmallCutoffRow)
    (hv : r.Valid) (x : ℝ) (hx : (r.triple.cutoff : ℝ) ≤ x)
    (e : ℚ × ℕ) (he : e ∈ r.overlaps) :
    1 < (e.1 : ℝ)*x^e.2 := by sorry





end D1Bound5
end
Source
D1Bound5/OneSmallCutoffReal.lean, lines 6-25, SHA-256 cfc21933cb4a82de4a9d5409cd9e6c6bc2d0d33f2b3a2f409c936a0b91b57d93. Project: https://github.com/tomislav-math/d1-bound5-lean

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