Goal:
  
  A : Type
  P : list A → A → Type
  d : A
  Γ : list A
  a : All_fold P Γ
  p : P Γ d
  b : All_fold P (d :: Γ)
  ============================
   (let H := CoreTactics.block in
    NoConfusionHom_All_fold A P (d :: Γ) (All_fold_cons P a p) b
    → let H0 := CoreTactics.block in All_fold_cons P a p = b)


DEBUG:Going to execute:
simpl in e

Goals:
    A : Type  P : list A → A → Type  b : All_fold P []
  ============================
   (let H := CoreTactics.block in
    NoConfusionHom_All_fold A P [] (All_fold_nil P) b
    → let H0 := CoreTactics.block in All_fold_nil P = b)

  
  A : Type
  P : list A → A → Type
  d : A
  Γ : list A
  a : All_fold P Γ
  p : P Γ d
  b : All_fold P (d :: Γ)
  ============================
   (let H := CoreTactics.block in
    NoConfusionHom_All_fold A P (d :: Γ) (All_fold_cons P a p) b
    → let H0 := CoreTactics.block in All_fold_cons P a p = b)


DEBUG:Going to execute:
DepElim.generalize_by_eqs H
Level 2: Backtrace:

Failed to progress.
Level 2: Backtrace:

Failed to progress.
Level 2: Backtrace:

Failed to progress.
Level 2: Backtrace:

Failed to progress.
Level 2: Backtrace:

Failed to progress.

Goals:
    A : Type  P : list A → A → Type  b : All_fold P []
  ============================
   (let H := CoreTactics.block in
    NoConfusionHom_All_fold A P [] (All_fold_nil P) b
    → let H0 := CoreTactics.block in All_fold_nil P = b)

  
  A : Type
  P : list A → A → Type
  d : A
  Γ : list A
  a : All_fold P Γ
  p : P Γ d
  b : All_fold P (d :: Γ)
  ============================
   (let H := CoreTactics.block in
    NoConfusionHom_All_fold A P (d :: Γ) (All_fold_cons P a p) b
    → let H0 := CoreTactics.block in All_fold_cons P a p = b)


DEBUG:Going to execute:
fun id => DepElim.generalize_eqs_sig id

Goals:
    A : Type  P : list A → A → Type  b : All_fold P []
  ============================
   (let H := CoreTactics.block in
    NoConfusionHom_All_fold A P [] (All_fold_nil P) b
    → let H0 := CoreTactics.block in All_fold_nil P = b)

  
  A : Type
  P : list A → A → Type
  d : A
  Γ : list A
  a : All_fold P Γ
  p : P Γ d
  b : All_fold P (d :: Γ)
  ============================
   (let H := CoreTactics.block in
    NoConfusionHom_All_fold A P (d :: Γ) (All_fold_cons P a p) b
    → let H0 := CoreTactics.block in All_fold_cons P a p = b)


DEBUG:Going to execute:
DepElim.generalize_eqs_sig id

Goals:
    A : Type  P : list A → A → Type  b : All_fold P []
  ============================
   (let H := CoreTactics.block in
    NoConfusionHom_All_fold A P [] (All_fold_nil P) b
    → let H0 := CoreTactics.block in All_fold_nil P = b)

  
  A : Type
  P : list A → A → Type
  d : A
  Γ : list A
  a : All_fold P Γ
  p : P Γ d
  b : All_fold P (d :: Γ)
  ============================
   (let H := CoreTactics.block in
    NoConfusionHom_All_fold A P (d :: Γ) (All_fold_cons P a p) b
    → let H0 := CoreTactics.block in All_fold_cons P a p = b)


DEBUG:Going to execute:
fun id =>
             (needs_generalization id; DepElim.generalize_sig_dest id) ||
               idtac

Goals:
    A : Type  P : list A → A → Type  b : All_fold P []
  ============================
   (let H := CoreTactics.block in
    NoConfusionHom_All_fold A P [] (All_fold_nil P) b
    → let H0 := CoreTactics.block in All_fold_nil P = b)

  
  A : Type
  P : list A → A → Type
  d : A
  Γ : list A
  a : All_fold P Γ
  p : P Γ d
  b : All_fold P (d :: Γ)
  ============================
   (let H := CoreTactics.block in
    NoConfusionHom_All_fold A P (d :: Γ) (All_fold_cons P a p) b
    → let H0 := CoreTactics.block in All_fold_cons P a p = b)


DEBUG:Going to execute:
(needs_generalization id; DepElim.generalize_sig_dest id) || idtac