Goal:
  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  Γ : list A
  H : All2_fold P Γ Γ
  p : P Γ Γ d d
  IHAll2_fold : All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ
  ============================
   (let H := CoreTactics.block in
    All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) (d :: Γ))


DEBUG:Going to execute:
intros _

Goals:
    A : Type  P : list A → list A → A → A → Type
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) [])

  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  Γ : list A
  H : All2_fold P Γ Γ
  p : P Γ Γ d d
  IHAll2_fold : All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) (d :: Γ))


DEBUG:Going to execute:
CoreTactics.unblock_goal

Goals:
    A : Type  P : list A → list A → A → A → Type
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) [])

  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  Γ : list A
  H : All2_fold P Γ Γ
  p : P Γ Γ d d
  IHAll2_fold : All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) (d :: Γ))


DEBUG:Going to execute:
unfold CoreTactics.block in *; cbv zeta

Goals:
    A : Type  P : list A → list A → A → A → Type
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) [])

  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  Γ : list A
  H : All2_fold P Γ Γ
  p : P Γ Γ d d
  IHAll2_fold : All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) (d :: Γ))


DEBUG:Going to execute:
unfold CoreTactics.block in *

Goals:
    A : Type  P : list A → list A → A → A → Type
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) [])

  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  Γ : list A
  H : All2_fold P Γ Γ
  p : P Γ Γ d d
  IHAll2_fold : All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) (d :: Γ))


DEBUG:Going to execute:
cbv zeta

Goals:
    A : Type  P : list A → list A → A → A → Type
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) [])

  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  Γ : list A
  H : All2_fold P Γ Γ
  p : P Γ Γ d d
  IHAll2_fold : All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) (d :: Γ))


DEBUG:Going to execute:
constructor

Goals:
    A : Type  P : list A → list A → A → A → Type
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) [])

  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  Γ : list A
  H : All2_fold P Γ Γ
  p : P Γ Γ d d
  IHAll2_fold : All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) (d :: Γ))


DEBUG:Going to execute:
<coq-core.plugins.ltac::constructor@0>

Goals:
  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  Γ : list A
  H : All2_fold P Γ Γ
  p : P Γ Γ d d
  IHAll2_fold : All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ)

  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  Γ : list A
  H : All2_fold P Γ Γ
  p : P Γ Γ d d
  IHAll2_fold : All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ
  ============================
   (P Γ Γ d d)


DEBUG:Going to execute:
auto

Goals:
  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  Γ : list A
  H : All2_fold P Γ Γ
  p : P Γ Γ d d
  IHAll2_fold : All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ
  ============================
   (All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ)

  
  A : Type
  P : list A → list A → A → A → Type
  d : A
  Γ : list A
  H : All2_fold P Γ Γ
  p : P Γ Γ d d
  IHAll2_fold : All_fold (λ (Γ : list A) (d : A), P Γ Γ d d) Γ
  ============================
   (P Γ Γ d d)


DEBUG:Going to execute:
<coq-core.plugins.ltac::auto@0> $1 $2 $3