Pell Finite Certificate — signed member
ProvedD1Bound5.PellFiniteCertificate.signed_memberdiophantine-tuplesnumber-theory
Auxiliary result PellFiniteCertificate.signed_member 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 Lean.Elab.Tactic.Omega import Mathlib.Algebra.Group.Int.Units import Mathlib.Algebra.Polynomial.Monic import Mathlib.Algebra.QuadraticAlgebra.Basic import Mathlib.Algebra.Ring.Basic import Mathlib.Algebra.Ring.Equiv import Mathlib.Algebra.Squarefree.Basic import Mathlib.Analysis.Complex.Norm import Mathlib.Data.Finset.Card import Mathlib.Data.Fintype.EquivFin import Mathlib.Data.Int.GCD import Mathlib.Data.Int.Sqrt import Mathlib.Data.List.Defs import Mathlib.Data.Rat.Lemmas import Mathlib.Data.ZMod.Basic import Mathlib.LinearAlgebra.Dimension.Free import Mathlib.NumberTheory.DiophantineApproximation.Basic import Mathlib.NumberTheory.NumberField.InfinitePlace.TotallyRealComplex import Mathlib.NumberTheory.NumberField.Norm import Mathlib.NumberTheory.Real.Irrational import Mathlib.RingTheory.Coprime.Lemmas import Mathlib.RingTheory.Int.Basic import Mathlib.Tactic import Mathlib.Tactic.GCongr import Mathlib.Tactic.IntervalCases import Mathlib.Tactic.Linarith import Mathlib.Tactic.LinearCombination import Mathlib.Tactic.NormNum import Mathlib.Tactic.Ring import Definitions.Def_D1Bound5_PellFiniteCertificate_Definitions import Definitions.Def_D1Bound5_PellMatchingCheck_Definitions import Definitions.Def_D1Bound5_UnitPairArithmeticModel_Definitions
Formal statement
section
open scoped NumberField
open Module
namespace D1Bound5
theorem _root_.D1Bound5.PellFiniteCertificate.signed_member {d X : ℤ}
(C : PellFiniteCertificate d X) (hd : 7 ≤ d) (hX : 1 ≤ X)
(u v z : ℤ) (hv : v ≠ 0) (heq : u^2-d*v^2=2)
(hbound : u^2-1 ≤ X^2) (hz : z=d*v^2+1 ∨ z=-(d*v^2+1)) :
PellSignedMember C.graph.magnitudes z := by sorry
end D1Bound5
end
Source
D1Bound5/PellFiniteCertificate.lean, lines 23-37, SHA-256 dcc2fd88b881b2c8eafcbde15c1cb33b51af6fe491a0856432d4dcd395c5e1ed. Project: https://github.com/tomislav-math/d1-bound5-lean