Coherent direct four
ProvedD1Bound5.coherent_direct_fourdiophantine-tuplesnumber-theory
The complete direct-four lemma for actual coherent roots.
Preamble
import Mathlib.Algebra.BigOperators.NatAntidiagonal import Mathlib.Algebra.QuadraticAlgebra.Basic import Mathlib.Algebra.Ring.Basic import Mathlib.Algebra.Ring.Equiv import Mathlib.Analysis.Analytic.Binomial import Mathlib.Analysis.Complex.Basic import Mathlib.Analysis.Complex.Norm import Mathlib.Analysis.Normed.Ring.Basic import Mathlib.Analysis.SpecificLimits.Normed import Mathlib.Data.Fin.VecNotation import Mathlib.Data.Finset.Card import Mathlib.Data.Finset.Insert import Mathlib.Data.Int.GCD import Mathlib.Data.Sym.Basic import Mathlib.Data.Sym.Card import Mathlib.LinearAlgebra.Dimension.Free import Mathlib.LinearAlgebra.Lagrange import Mathlib.NumberTheory.NumberField.InfinitePlace.TotallyRealComplex import Mathlib.NumberTheory.NumberField.Norm import Mathlib.RingTheory.Binomial import Mathlib.RingTheory.MvPolynomial.Symmetric.Defs import Mathlib.Tactic.Linarith import Mathlib.Tactic.LinearCombination import Definitions.Def_D1Bound5_CoherentIntegralForms_Definitions import Definitions.Def_D1Bound5_CoherentPolynomialWeights_Definitions import Definitions.Def_D1Bound5_CoherentQuotientForms_Definitions
Formal statement
section
open Finset
namespace D1Bound5
theorem _root_.D1Bound5.coherent_direct_four
(a : Fin 4 → ℂ) (hinj : Function.Injective a) (p q eta : ℂ)
(hA : 1 ≤ ‖a 0‖) (hAB : ‖a 0‖ ≤ ‖a 1‖)
(hBS : ‖a 1‖ ≤ ‖a 2‖) (hST : ‖a 2‖ ≤ ‖a 3‖)
(hTP : ‖a 3‖ ≤ ‖p‖) (hP : 1000 ≤ ‖p‖) (hQ : 1000*‖p‖ ≤ ‖q‖)
(heta : eta^2 = p*q) :
‖coherentQuotientForm a (coherentVandermonde4 a) p q eta‖ <
13*‖a 1‖*‖a 2‖^2*‖a 3‖^3/‖coherentTerminalRoot p q eta‖ +
49*‖a 2‖*‖a 3‖^2*‖coherentTerminalRoot p q eta‖/(50*‖a 0‖*‖p‖^4) ∧
(coherentQuotientForm a (coherentVandermonde4 a) p q eta = 0 →
10*‖a 0‖*‖a 1‖*‖a 2‖*‖a 3‖*‖p‖^3 < ‖q‖ ∧
‖q‖ < 17*‖a 0‖*‖a 1‖*‖a 2‖*‖a 3‖*‖p‖^3) := by sorry
end D1Bound5
end
Source
D1Bound5/CoherentDirectFour.lean, lines 138-206, SHA-256 f298f052fa0e8fad59aa2ae6bf4f0b0845732c38cbe5210b92112fe6b28bc147. Project: https://github.com/tomislav-math/d1-bound5-lean