Goal:
  
  A : Type
  P : list A → list A → A → A → Type
  H1' : list A
  H1 : list A
  H : All2_fold P H1' H1
  ============================
   (∀ (H := CoreTactics.block) (Γ : list A),
      {| pr1 := Γ; pr2 := Γ |} = {| pr1 := H1'; pr2 := H1 |}
      → let H0 := CoreTactics.block in
        let H1 := CoreTactics.block in
        All_fold (λ (Γ0 : list A) (d : A), P Γ0 Γ0 d d) Γ)


DEBUG:Going to execute:
induction p
Level 4: evaluation of term
raised the exception
Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2_fold P H1' H1)"
in
environment:
A : Type
P : list A → list A → A → A → Type
H1', H1 : list A
H : All2_fold P H1' H1


Level 3: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2_fold P H1' H1)"
in
environment:
A : Type
P : list A → list A → A → A → Type
H1', H1 : list A
H : All2_fold P H1' H1

Level 2: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2_fold P H1' H1)"
in
environment:
A : Type
P : list A → list A → A → A → Type
H1', H1 : list A
H : All2_fold P H1' H1

Level 2: evaluation
raised the exception
Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2_fold P H1' H1)"
in
environment:
A : Type
P : list A → list A → A → A → Type
H1', H1 : list A
H : All2_fold P H1' H1


Level 2: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2_fold P H1' H1)"
in
environment:
A : Type
P : list A → list A → A → A → Type
H1', H1 : list A
H : All2_fold P H1' H1

Level 2: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2_fold P H1' H1)"
in
environment:
A : Type
P : list A → list A → A → A → Type
H1', H1 : list A
H : All2_fold P H1' H1

Level 1: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2_fold P H1' H1)"
in
environment:
A : Type
P : list A → list A → A → A → Type
H1', H1 : list A
H : All2_fold P H1' H1

Level 1: evaluation
raised the exception
Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2_fold P H1' H1)"
in
environment:
A : Type
P : list A → list A → A → A → Type
H1', H1 : list A
H : All2_fold P H1' H1


Level 1: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2_fold P H1' H1)"
in
environment:
A : Type
P : list A → list A → A → A → Type
H1', H1 : list A
H : All2_fold P H1' H1

Level 0: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2_fold P H1' H1)"
in
environment:
A : Type
P : list A → list A → A → A → Type
H1', H1 : list A
H : All2_fold P H1' H1


Goals:
    A : Type  P : list A → list A → A → A → Type
  ============================
   (∀ (H := CoreTactics.block) (Γ : list A),
      {| pr1 := Γ; pr2 := Γ |} = {| pr1 := []; pr2 := [] |}
      → let H0 := CoreTactics.block in
        let H1 := CoreTactics.block in
        All_fold (λ (Γ0 : list A) (d : A), P Γ0 Γ0 d d) Γ)

  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  d' : A
  Γ : list A
  Γ' : list A
  H : All2_fold P Γ Γ'
  p : P Γ Γ' d d'
  IHAll2_fold : ∀ (H := CoreTactics.block) (Γ0 : list A),
                  {| pr1 := Γ0; pr2 := Γ0 |} = {| pr1 := Γ; pr2 := Γ' |}
                  → let H0 := CoreTactics.block in
                    let H1 := CoreTactics.block in
                    All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ0
  ============================
   (∀ (H := CoreTactics.block) (Γ0 : list A),
      {| pr1 := Γ0; pr2 := Γ0 |} = {| pr1 := d :: Γ; pr2 := d' :: Γ' |}
      → let H0 := CoreTactics.block in
        let H1 := CoreTactics.block in
        All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ0)


DEBUG:Going to execute:
CoreTactics.intros_until_block

Goals:
    A : Type  P : list A → list A → A → A → Type
  ============================
   (∀ (H := CoreTactics.block) (Γ : list A),
      {| pr1 := Γ; pr2 := Γ |} = {| pr1 := []; pr2 := [] |}
      → let H0 := CoreTactics.block in
        let H1 := CoreTactics.block in
        All_fold (λ (Γ0 : list A) (d : A), P Γ0 Γ0 d d) Γ)

  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  d' : A
  Γ : list A
  Γ' : list A
  H : All2_fold P Γ Γ'
  p : P Γ Γ' d d'
  IHAll2_fold : ∀ (H := CoreTactics.block) (Γ0 : list A),
                  {| pr1 := Γ0; pr2 := Γ0 |} = {| pr1 := Γ; pr2 := Γ' |}
                  → let H0 := CoreTactics.block in
                    let H1 := CoreTactics.block in
                    All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ0
  ============================
   (∀ (H := CoreTactics.block) (Γ0 : list A),
      {| pr1 := Γ0; pr2 := Γ0 |} = {| pr1 := d :: Γ; pr2 := d' :: Γ' |}
      → let H0 := CoreTactics.block in
        let H1 := CoreTactics.block in
        All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ0)


DEBUG:Going to execute:
match goal with
           | |- let _ := CoreTactics.block in _ => intros _
           | |- _ => try (intro; CoreTactics.intros_until_block)
           end