exception AllSelectedTermsMustBeConvertible;;
val assumption_tac: ProofEngineTypes.tactic
+
val generalize_tac:
?mk_fresh_name_callback:ProofEngineTypes.mk_fresh_name_type -> Cic.term list ->
ProofEngineTypes.tactic
+ (* change the current goal to those referred by the given meta number *)
+val set_goal: int -> ProofEngineTypes.tactic