Goal:
    x : t  H : lt x x
  ============================
   (Gt = Eq)


DEBUG:Going to execute:
now apply irreflexivity in H
DEBUG LTAC Evaluated term: irreflexivity
Level 0: Backtrace:

Unable to apply lemma of type "Reflexive (complement ?R)"
on hypothesis of type "lt x y".
Level 0: Backtrace:

Unable to apply lemma of type "Reflexive (complement ?R)"
on hypothesis of type "lt x y".
Level 0: Backtrace:

Unable to apply lemma of type "Reflexive (complement ?R)"
on hypothesis of type "lt x y".
Level 0: Backtrace:

Unable to apply lemma of type "Reflexive (complement ?R)"
on hypothesis of type "lt x y".