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


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

No such hypothesis: H
Level 0: Backtrace:

No such hypothesis: H
Level 0: Backtrace:

No such hypothesis: H
Level 0: Backtrace:

No such hypothesis: H