- tacticals: new tactical ifs added: uses thens where if_ uses then_

[helm.git] / components / tactics / proofEngineHelpers.mli

diff --git a/components/tactics/proofEngineHelpers.mli b/components/tactics/proofEngineHelpers.mli
index 21628cba145eb0958c9c703dba2dbe2b39e716dc..cc13d1ad780bf067e7df4ca65ee77ef4bd447ca2 100644 (file)
--- a/components/tactics/proofEngineHelpers.mli
+++ b/components/tactics/proofEngineHelpers.mli
@@ -35,7 +35,7 @@ val subst_meta_in_proof :
   ProofEngineTypes.proof * Cic.metasenv
 val subst_meta_and_metasenv_in_proof :
   ProofEngineTypes.proof ->
-  int -> (Cic.term -> Cic.term) -> Cic.metasenv ->
+  int -> Cic.substitution -> Cic.metasenv ->
   ProofEngineTypes.proof * Cic.metasenv
 
 (* returns the list of goals that are in newmetasenv and were not in
@@ -103,23 +103,33 @@ val locate_in_conjecture:
  ?equality:(Cic.context -> Cic.term -> Cic.term -> bool) ->
   Cic.term -> Cic.conjecture -> (Cic.context * Cic.term) list
 
-(* saturate_term newmeta metasenv context ty goal_arity                       *)
-(* Given a type [ty] (a backbone), it returns its suffix of length            *)
-(* [goal_arity] head and a new metasenv in which there is new a META for each *)
-(* hypothesis, a list of arguments for the new applications and the index of  *)
-(* the last new META introduced. The nth argument in the list of arguments is *)
-(* just the nth new META.                                                     *)
-val saturate_term:
- int -> Cic.metasenv -> Cic.context -> Cic.term -> int ->
-  Cic.term * Cic.metasenv * Cic.term list * int
-
 (* returns the index and the type of a premise in a context *)
 val lookup_type: Cic.metasenv -> Cic.context -> string -> int * Cic.term
 
-(* FG: some helper functions ************************************************)
+(* orders a metasenv w.r.t. dependency among metas *)
+val sort_metasenv: Cic.metasenv -> Cic.metasenv
+
 
-val list_rev_map_filter: ('a -> 'b option) -> 'a list -> 'b list
+(* FG: some helper functions ************************************************)
 
 val get_name: Cic.context -> int -> string option
 
 val get_rel: Cic.context -> string -> Cic.term option
+
+(* split_with_whd (c, t) takes a type t typed in the context c and returns
+   [(c_0, t_0); (c_1, t_1); ...; (c_n, t_n)], n where t_0 is the conclusion of
+   t and t_i is the premise of t accessed by Rel i in t_0. 
+   Performes a whd on the conclusion before giving up.
+   Each t_i is returned with a context c_i in wich it is typed
+   split_with_normalize (c, t) normalizes t before operating the split
+   whd is useless here
+*)
+val split_with_whd: Cic.context * Cic.term -> 
+                    (Cic.context * Cic.term) list * int
+val split_with_normalize: Cic.context * Cic.term -> 
+                          (Cic.context * Cic.term) list * int
+
+(** create a ProofEngineTypes.mk_fresh_name_type function which uses given
+  * names as long as they are available, then it fallbacks to name generation
+  * using FreshNamesGenerator module *)
+val namer_of: string option list -> ProofEngineTypes.mk_fresh_name_type