Goal:
    y : t  H0 : lt y y
  ============================
   (Eq = Lt)


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