Goal:
    A : Type  B : A → Type  C : A → Type  f : ∀ x : A, B x → C x
  ============================
   (∀ (l : list A) (a : All B l), make_All_All_graph l a (make_All_All a))


DEBUG:Going to execute:
CoreTactics.set_eos
Level 1: Backtrace:

No matching clauses for match.
Level 0: Backtrace:

No matching clauses for match.