Goal:
  
  A : Type
  B : Type
  C : Type
  P : A → C → Type
  l : list A
  l' : list B
  f : B → C
  ============================
   (All2 (λ (x : A) (y : B), P x (f y)) l l' <~>
    All2 P (map (λ x : A, x) l) (map f l'))


DEBUG:Going to execute:
eapply All2_map_equiv
DEBUG LTAC Evaluated term: (map_id l)
DEBUG LTAC Evaluated term: (map_id l)

Goals:

DEBUG:Going to execute:
eauto
DEBUG LTAC Evaluated term: All2_map_equiv

Goals:

DEBUG:Going to execute:
<coq-core.plugins.ltac::eauto@0> $1 $2 $3