Bennett two integral summand two

import Lean.Elab.Tactic.Omega
import Mathlib.Algebra.BigOperators.NatAntidiagonal
import Mathlib.Algebra.Polynomial.BigOperators
import Mathlib.Algebra.Polynomial.Degree.Operations
import Mathlib.Combinatorics.Enumerative.Catalan.Basic
import Mathlib.RingTheory.Binomial
import Mathlib.RingTheory.PowerSeries.Binomial
import Mathlib.Tactic.LinearCombination
import Mathlib.Tactic.NormNum
import Mathlib.Tactic.Ring

section
namespace D1Bound5

variable {F : Type*} [Field F] [CharZero F]






theorem _root_.D1Bound5.bennett_two_integral_summand_two (S : Subring F)
    (a b c : F) (ha : a ∈ S) (hb : b ∈ S) (hc : c ∈ S)
    (ha0 : a ≠ 0) (hab : a ≠ b)
    (k d0 d1 d2 h0 h1 h2 : ℕ) (hk : 1 ≤ k)
    (hd : d0 + d1 + d2 = 1) (hh : h0 + h1 + h2 + 1 = k + d2) :
    ∃ q ∈ S,
      (((4 : F) ^ k * Ring.choose ((k : F) + 1 / 2) h2) *
        Ring.choose (-((k + d0 : ℕ) : F)) h0 *
        Ring.choose (-((k + d1 : ℕ) : F)) h1) *
      ((a * b * (a - b) ^ 2) ^ k * (a * b * c + a) ^ (k - h2) *
        (a⁻¹) ^ (k + d0 + h0) * ((a - b)⁻¹) ^ (k + d1 + h1)) = b ^ k * q := by sorry

end D1Bound5
end