Goal:
    z : Z  H : False \/ False
  ============================
   False


DEBUG:Going to execute:
elim id
Level 2: evaluation returns
<coq-core.plugins.tauto::is_disj@0>
where
tauto_flags := 
of type
tauto_flags
X1 := False \/ False
of type
constr of type tacvalue


Goals:
    z : Z  H : False \/ False
  ============================
   (False -> False)

    z : Z  H : False \/ False
  ============================
   (False -> False)


DEBUG:Going to execute:
intro
DEBUG LTAC Evaluated term: H

Goals:
    z : Z  H : False \/ False
  ============================
   (False -> False)

    z : Z  H : False \/ False
  ============================
   (False -> False)


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

Goals:
    z : Z  H : False \/ False  H0 : False
  ============================
   False

    z : Z  H : False \/ False  H0 : False
  ============================
   False


DEBUG:Going to execute:
clear id