Goal:
  
  A : Type
  B : Type
  C : Type
  P : A → B → C → Type
  a : C
  a0 : A
  ls2 : list A
  b : B
  ls3 : list B
  X : P a0 b a
  X2 : All2 (λ (x : A) (y : B), P x y a) ls2 ls3
  x : A
  y : B
  ============================
   (P x y a → All (P x y) [])


DEBUG:Going to execute:
<coq-core.plugins.ltac::constructor@0>

Goals:

DEBUG:Going to execute:
subst

Goals:

DEBUG:Going to execute:
<coq-core.plugins.ltac::subst@1>

Goals:

DEBUG:Going to execute:
eauto

Goals:

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