Goal:
  
  A : Type
  B : Type
  C : Type
  P : nat → A → B → Type
  Q : B → C → Type
  R : nat → A → C → Type
  S : nat → A → C → Type
  l'' : list C
  n : nat
  b1' : list B
  b1 : list C
  b : All2 Q b1' b1
  ============================
   ({| pr1 := []; pr2 := l'' |} = {| pr1 := b1'; pr2 := b1 |}
    → let H := CoreTactics.block in
      All2i R n [] l''
      → (∀ (n : nat) (x : A) (y : B) (z : C),
           P n x y → Q y z → R n x z → S n x z)
        → let H0 := CoreTactics.block in All2i S n [] l'')


DEBUG:Going to execute:
destruct p || (case p; clear p)
Level 4: evaluation of term
raised the exception
Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2 Q b1' b1)"
in
environment:
A : Type
B : Type
C : Type
P : nat → A → B → Type
Q : B → C → Type
R : nat → A → C → Type
S : nat → A → C → Type
l'' : list C
n : nat
b1' : list B
b1 : list C
b : All2 Q b1' b1


Level 3: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2 Q b1' b1)"
in
environment:
A : Type
B : Type
C : Type
P : nat → A → B → Type
Q : B → C → Type
R : nat → A → C → Type
S : nat → A → C → Type
l'' : list C
n : nat
b1' : list B
b1 : list C
b : All2 Q b1' b1

Level 2: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2 Q b1' b1)"
in
environment:
A : Type
B : Type
C : Type
P : nat → A → B → Type
Q : B → C → Type
R : nat → A → C → Type
S : nat → A → C → Type
l'' : list C
n : nat
b1' : list B
b1 : list C
b : All2 Q b1' b1

Level 2: evaluation
raised the exception
Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2 Q b1' b1)"
in
environment:
A : Type
B : Type
C : Type
P : nat → A → B → Type
Q : B → C → Type
R : nat → A → C → Type
S : nat → A → C → Type
l'' : list C
n : nat
b1' : list B
b1 : list C
b : All2 Q b1' b1


Level 2: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2 Q b1' b1)"
in
environment:
A : Type
B : Type
C : Type
P : nat → A → B → Type
Q : B → C → Type
R : nat → A → C → Type
S : nat → A → C → Type
l'' : list C
n : nat
b1' : list B
b1 : list C
b : All2 Q b1' b1

Level 2: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2 Q b1' b1)"
in
environment:
A : Type
B : Type
C : Type
P : nat → A → B → Type
Q : B → C → Type
R : nat → A → C → Type
S : nat → A → C → Type
l'' : list C
n : nat
b1' : list B
b1 : list C
b : All2 Q b1' b1

Level 1: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2 Q b1' b1)"
in
environment:
A : Type
B : Type
C : Type
P : nat → A → B → Type
Q : B → C → Type
R : nat → A → C → Type
S : nat → A → C → Type
l'' : list C
n : nat
b1' : list B
b1 : list C
b : All2 Q b1' b1

Level 1: evaluation
raised the exception
Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2 Q b1' b1)"
in
environment:
A : Type
B : Type
C : Type
P : nat → A → B → Type
Q : B → C → Type
R : nat → A → C → Type
S : nat → A → C → Type
l'' : list C
n : nat
b1' : list B
b1 : list C
b : All2 Q b1' b1


Level 1: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2 Q b1' b1)"
in
environment:
A : Type
B : Type
C : Type
P : nat → A → B → Type
Q : B → C → Type
R : nat → A → C → Type
S : nat → A → C → Type
l'' : list C
n : nat
b1' : list B
b1 : list C
b : All2 Q b1' b1

Level 0: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2 Q b1' b1)"
in
environment:
A : Type
B : Type
C : Type
P : nat → A → B → Type
Q : B → C → Type
R : nat → A → C → Type
S : nat → A → C → Type
l'' : list C
n : nat
b1' : list B
b1 : list C
b : All2 Q b1' b1