Goal:
  
  A : Type
  P : A → Prop
  a : A
  x : A
  H : [x] ≠ []
  H0 : P x
  H1 : Forall P []
  IHForall : [] ≠ [] → P (last [] a)
  ============================
   (P x)


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