Goal:
    A : Type  B : Type  R : nat → A → B → Type  n : nat  e : True
  ============================
   (let H := CoreTactics.block in
    let H0 := CoreTactics.block in
    noConfusionHom_All2i_obligation_2 A B R n [] [] All2i_nil All2i_nil
      (noConfusionHom_All2i_obligation_1 A B R n [] [] All2i_nil All2i_nil e) =
    e)


DEBUG:Going to execute:
destruct p || (case p; clear p)
Level 8: evaluation of term
raised the exception
Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage True" in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
e : True


Level 7: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage True" in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
e : True

Level 6: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage True" in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
e : True

Level 6: evaluation
raised the exception
Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage True" in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
e : True


Level 6: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage True" in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
e : True

Level 6: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage True" in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
e : True

Level 5: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage True" in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
e : True

Level 5: evaluation
raised the exception
Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage True" in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
e : True


Level 5: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage True" in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
e : True

Level 4: Backtrace:


Could not find an instance for "DepElim.DependentEliminationPackage True" in
environment:
A : Type
B : Type
R : nat → A → B → Type
n : nat
e : True