theorem extracted_formal_statement_362.{u_3, u_2, u_1} {E₁ : Type u_1} {E₂ : Type u_2} {F : Type u_3}
  [inst : NormedAddCommGroup E₁] [inst_1 : InnerProductSpace ℝ E₁] [inst_2 : FiniteDimensional ℝ E₁]
  [inst_3 : NormedAddCommGroup E₂] [inst_4 : InnerProductSpace ℝ E₂] [inst_5 : FiniteDimensional ℝ E₂]
  [inst_6 : NormedAddCommGroup F] [inst_7 : InnerProductSpace ℝ F] [inst_8 : FiniteDimensional ℝ F]
  {admm : ADMM E₁ E₂ F} {admm_kkt : Existance_of_kkt admm} [inst_9 : Setting E₁ E₂ F admm admm_kkt] (n : ℕ+)
  (h : 0 < ADMM.τ E₁ E₂ F ∧ ADMM.τ E₁ E₂ F ≤ 1)
  (h_original_goal :
    Φ ↑n - Φ (↑n + 1) ≥
      ADMM.τ E₁ E₂ F * ADMM.ρ E₁ E₂ F * ‖(OptProblem.A₂ E₁) (ADMM.x₂ E₁ F ↑n - ADMM.x₂ E₁ F (↑n + 1))‖ ^ 2 +
        1 * ADMM.ρ E₁ E₂ F * ‖(OptProblem.A₁ E₂) (e₁ (↑n + 1)) + (OptProblem.A₂ E₁) (e₂ (↑n + 1))‖ ^ 2) :
  1 / (ADMM.τ E₁ E₂ F * ADMM.ρ E₁ E₂ F) * ‖ey ↑n‖ ^ 2 + ADMM.ρ E₁ E₂ F * ‖(OptProblem.A₂ E₁) (e₂ ↑n)‖ ^ 2 +
        ((1 - ADMM.τ E₁ E₂ F) ⊔ (1 - 1 / ADMM.τ E₁ E₂ F)) * ADMM.ρ E₁ E₂ F *
          ‖(OptProblem.A₁ E₂) (e₁ ↑n) + (OptProblem.A₂ E₁) (e₂ ↑n)‖ ^ 2 -
      (1 / (ADMM.τ E₁ E₂ F * ADMM.ρ E₁ E₂ F) * ‖ey (↑n + 1)‖ ^ 2 +
          ADMM.ρ E₁ E₂ F * ‖(OptProblem.A₂ E₁) (e₂ (↑n + 1))‖ ^ 2 +
        ((1 - ADMM.τ E₁ E₂ F) ⊔ (1 - 1 / ADMM.τ E₁ E₂ F)) * ADMM.ρ E₁ E₂ F *
          ‖(OptProblem.A₁ E₂) (e₁ (↑n + 1)) + (OptProblem.A₂ E₁) (e₂ (↑n + 1))‖ ^ 2) ≥
    ADMM.τ E₁ E₂ F * ADMM.ρ E₁ E₂ F * ‖(OptProblem.A₂ E₁) (ADMM.x₂ E₁ F ↑n - ADMM.x₂ E₁ F (↑n + 1))‖ ^ 2 +
      1 * ADMM.ρ E₁ E₂ F * ‖(OptProblem.A₁ E₂) (e₁ (↑n + 1)) + (OptProblem.A₂ E₁) (e₂ (↑n + 1))‖ ^ 2 := sorry

State before:
case inl
E₁ : Type u_1
E₂ : Type u_2
F : Type u_3
inst✝⁹ : NormedAddCommGroup E₁
inst✝⁸ : InnerProductSpace ℝ E₁
inst✝⁷ : FiniteDimensional ℝ E₁
inst✝⁶ : NormedAddCommGroup E₂
inst✝⁵ : InnerProductSpace ℝ E₂
inst✝⁴ : FiniteDimensional ℝ E₂
inst✝³ : NormedAddCommGroup F
inst✝² : InnerProductSpace ℝ F
inst✝¹ : FiniteDimensional ℝ F
admm : ADMM E₁ E₂ F
admm_kkt : Existance_of_kkt admm
inst✝ : Setting E₁ E₂ F admm admm_kkt
n : ℕ+
h : 0 < ADMM.τ E₁ E₂ F ∧ ADMM.τ E₁ E₂ F ≤ 1
⊢ Φ ↑n - Φ (↑n + 1) ≥
    ADMM.τ E₁ E₂ F * ADMM.ρ E₁ E₂ F * ‖(OptProblem.A₂ E₁) (ADMM.x₂ E₁ F ↑n - ADMM.x₂ E₁ F (↑n + 1))‖ ^ 2 +
      1 * ADMM.ρ E₁ E₂ F * ‖(OptProblem.A₁ E₂) (e₁ (↑n + 1)) + (OptProblem.A₂ E₁) (e₂ (↑n + 1))‖ ^ 2

Tactic: simp only [Φ, Ψ]

State after:
[case inl
 E₁ : Type u_1
 E₂ : Type u_2
 F : Type u_3
 inst✝⁹ : NormedAddCommGroup E₁
 inst✝⁸ : InnerProductSpace ℝ E₁
 inst✝⁷ : FiniteDimensional ℝ E₁
 inst✝⁶ : NormedAddCommGroup E₂
 inst✝⁵ : InnerProductSpace ℝ E₂
 inst✝⁴ : FiniteDimensional ℝ E₂
 inst✝³ : NormedAddCommGroup F
 inst✝² : InnerProductSpace ℝ F
 inst✝¹ : FiniteDimensional ℝ F
 admm : ADMM E₁ E₂ F
 admm_kkt : Existance_of_kkt admm
 inst✝ : Setting E₁ E₂ F admm admm_kkt
 n : ℕ+
 h : 0 < ADMM.τ E₁ E₂ F ∧ ADMM.τ E₁ E₂ F ≤ 1
 ⊢ 1 / (ADMM.τ E₁ E₂ F * ADMM.ρ E₁ E₂ F) * ‖ey ↑n‖ ^ 2 + ADMM.ρ E₁ E₂ F * ‖(OptProblem.A₂ E₁) (e₂ ↑n)‖ ^ 2 +
         ((1 - ADMM.τ E₁ E₂ F) ⊔ (1 - 1 / ADMM.τ E₁ E₂ F)) * ADMM.ρ E₁ E₂ F *
           ‖(OptProblem.A₁ E₂) (e₁ ↑n) + (OptProblem.A₂ E₁) (e₂ ↑n)‖ ^ 2 -
       (1 / (ADMM.τ E₁ E₂ F * ADMM.ρ E₁ E₂ F) * ‖ey (↑n + 1)‖ ^ 2 +
           ADMM.ρ E₁ E₂ F * ‖(OptProblem.A₂ E₁) (e₂ (↑n + 1))‖ ^ 2 +
         ((1 - ADMM.τ E₁ E₂ F) ⊔ (1 - 1 / ADMM.τ E₁ E₂ F)) * ADMM.ρ E₁ E₂ F *
           ‖(OptProblem.A₁ E₂) (e₁ (↑n + 1)) + (OptProblem.A₂ E₁) (e₂ (↑n + 1))‖ ^ 2) ≥
     ADMM.τ E₁ E₂ F * ADMM.ρ E₁ E₂ F * ‖(OptProblem.A₂ E₁) (ADMM.x₂ E₁ F ↑n - ADMM.x₂ E₁ F (↑n + 1))‖ ^ 2 +
       1 * ADMM.ρ E₁ E₂ F * ‖(OptProblem.A₁ E₂) (e₁ (↑n + 1)) + (OptProblem.A₂ E₁) (e₂ (↑n + 1))‖ ^ 2]

Relevant lemmas: