X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=components%2Ftactics%2Fparamodulation%2Fequality.mli;h=1182afee654d855ea8bda55f5a5914d1dd10cf5a;hb=41e76668e9389ce17e41747026e533f907a0311c;hp=ee90d7b6e2f2524afd3e17bb62cebbdd1534a844;hpb=eb363293909232713275c44c94e1fa7d7dce9628;p=helm.git

diff --git a/components/tactics/paramodulation/equality.mli b/components/tactics/paramodulation/equality.mli
index ee90d7b6e..1182afee6 100644
--- a/components/tactics/paramodulation/equality.mli
+++ b/components/tactics/paramodulation/equality.mli
@@ -61,15 +61,17 @@ val string_of_proof :
   ?names:(Cic.name option)list -> proof -> goal_proof -> string
 (* given a proof and a list of meta indexes we are interested in the
  * instantiation gives back the cic proof and the list of instantiations *)  
-(* build_goal_proof [goal_proof] [initial_proof] [ty] 
+(* build_goal_proof [eq_URI] [goal_proof] [initial_proof] [ty] 
  *  [ty] is the type of the goal *)
 val build_goal_proof: 
-  goal_proof -> proof -> Cic.term-> int list -> Cic.term * Cic.term list
-val refl_proof: Cic.term -> Cic.term -> Cic.term 
+  UriManager.uri -> goal_proof -> proof -> Cic.term-> int list -> 
+    Cic.term * Cic.term list
+val refl_proof: UriManager.uri -> Cic.term -> Cic.term -> Cic.term 
 (** ensures that metavariables in equality are unique *)
 val fix_metas: int -> equality -> int * equality
 val metas_of_proof: proof -> int list
 
+val add_subst : Subst.substitution -> proof -> proof
 exception TermIsNotAnEquality;;
 
 (**
@@ -81,7 +83,7 @@ val equality_of_term: Cic.term -> Cic.term -> equality
 (**
    Re-builds the term corresponding to this equality
 *)
-val term_of_equality: equality -> Cic.term
+val term_of_equality: UriManager.uri -> equality -> Cic.term
 val term_is_equality: Cic.term -> bool
 
 (** tests a sort of alpha-convertibility between the two terms, but on the
@@ -93,3 +95,27 @@ val meta_convertibility_eq: equality -> equality -> bool
 
 val is_weak_identity: equality -> bool
 val is_identity: Utils.environment -> equality -> bool
+
+(* symmetric [eq_ty] [l] [id] [uri] [m] 
+ *
+ * given an equality (_,p,(_,[l],r,_),[m],[id]) of 'type' l=r
+ * returns the proof of the symmetric (r=l).
+ *
+ * [uri] is the uri of eq
+ * [eq_ty] the ty of the equality sides
+ *)
+val symmetric:
+  Cic.term -> Cic.term -> int -> UriManager.uri ->
+    Cic.metasenv -> proof
+
+(* takes 3 lists of alive ids (they are threated the same way, the type is
+ * funny just to not oblige you to concatenate them) and drops all the dead
+ * equalities *)
+val collect: int list -> int list -> int list -> unit
+
+(* given an equality, returns the numerical id *)
+val id_of: equality -> int
+
+(* profiling statistics *)
+val get_stats: unit -> string
+