Goal:
  
  A : Type
  B : Type
  R : A → B → Type
  R' : ∀ (a : A) (b : B), R a b → Type
  e : True
  ============================
   (noConfusionHom_All2_dep_obligation_2 A B R R' [] [] All2_nil All2_dep_nil
      All2_dep_nil
      (noConfusionHom_All2_dep_obligation_1 A B R R' [] [] All2_nil
         All2_dep_nil All2_dep_nil e) = e)


DEBUG:Going to execute:
try intros until H; intro_block_id H || intro_block H
Level 5: evaluation returns
try intros until H; intro_block_id H || intro_block H;
 (try simpl in H; DepElim.simplify_equations_in H)
where
H := e
of type
constr of type tacvalue