Goal:
  
  A : Type
  B : Type
  R : nat → A → B → Type
  n : nat
  b0 : All2i R n [] []
  b'' : nat
  b''0 : list A
  b' : list B
  b : All2i R b'' b''0 b'
  ============================
   ({| pr1 := {| pr1 := n; pr2 := {| pr1 := []; pr2 := [] |} |}; pr2 := b0 |} =
    {|
      pr1 := {| pr1 := b''; pr2 := {| pr1 := b''0; pr2 := b' |} |}; pr2 := b
    |}
    → ∀ (H := CoreTactics.block) (e : NoConfusionHom_All2i A B R n [] []
                                        All2i_nil b0),
        let H0 := CoreTactics.block in
        noConfusionHom_All2i_obligation_2 A B R n [] [] All2i_nil b0
          (noConfusionHom_All2i_obligation_1 A B R n [] [] All2i_nil b0 e) =
        e)


DEBUG:Going to execute:
destruct p || (case p; clear p)
Level 6: evaluation of term
raised the exception
Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2i R b'' b''0 b')"
in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
b0 : All2i R n [] []
b'' : nat
b''0 : list A
b' : list B
b : All2i R b'' b''0 b'


Level 5: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2i R b'' b''0 b')"
in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
b0 : All2i R n [] []
b'' : nat
b''0 : list A
b' : list B
b : All2i R b'' b''0 b'

Level 4: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2i R b'' b''0 b')"
in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
b0 : All2i R n [] []
b'' : nat
b''0 : list A
b' : list B
b : All2i R b'' b''0 b'

Level 4: evaluation
raised the exception
Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2i R b'' b''0 b')"
in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
b0 : All2i R n [] []
b'' : nat
b''0 : list A
b' : list B
b : All2i R b'' b''0 b'


Level 4: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2i R b'' b''0 b')"
in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
b0 : All2i R n [] []
b'' : nat
b''0 : list A
b' : list B
b : All2i R b'' b''0 b'

Level 4: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2i R b'' b''0 b')"
in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
b0 : All2i R n [] []
b'' : nat
b''0 : list A
b' : list B
b : All2i R b'' b''0 b'

Level 3: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2i R b'' b''0 b')"
in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
b0 : All2i R n [] []
b'' : nat
b''0 : list A
b' : list B
b : All2i R b'' b''0 b'

Level 3: evaluation
raised the exception
Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2i R b'' b''0 b')"
in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
b0 : All2i R n [] []
b'' : nat
b''0 : list A
b' : list B
b : All2i R b'' b''0 b'


Level 3: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2i R b'' b''0 b')"
in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
b0 : All2i R n [] []
b'' : nat
b''0 : list A
b' : list B
b : All2i R b'' b''0 b'

Level 2: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage
                                  (All2i R b'' b''0 b')"
in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
b0 : All2i R n [] []
b'' : nat
b''0 : list A
b' : list B
b : All2i R b'' b''0 b'