* http://cs.unibo.it/helm/.
*)
-exception NotConvertible
-
(* proof engine status *)
val proof : ProofEngineTypes.proof option ref
val goal : ProofEngineTypes.goal option ref
val reduce : Cic.term -> unit
val simpl : Cic.term -> unit
val fold : Cic.term -> unit
-val change : goal_input:Cic.term -> input:Cic.term -> unit
(* scratch area reduction tactics *)
val whd_in_scratch : Cic.term -> Cic.term -> Cic.term
val letin : Cic.term -> unit
val exact : Cic.term -> unit
val elim_intros_simpl : Cic.term -> unit
+val change : goal_input:Cic.term -> input:Cic.term -> unit
(* structural tactics *)
val clearbody : Cic.hypothesis -> unit
(* other tactics *)
val elim_type : Cic.term -> unit
val ring : unit -> unit
+val fourier : unit -> unit
+val rewrite_simpl : Cic.term -> unit