X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fparamodulation%2Finference.mli;h=2011dd979b6bab4f3194de51868ea42dbd4dc50f;hb=5c9e1997848c2f74297a5a243679f4bcb6ae0dc7;hp=5ced528bb81055550961d65e489068bded9c49cf;hpb=bdc855b1b6c9552a49a01769cb906a438ca60cc4;p=helm.git

diff --git a/helm/ocaml/paramodulation/inference.mli b/helm/ocaml/paramodulation/inference.mli
index 5ced528bb..2011dd979 100644
--- a/helm/ocaml/paramodulation/inference.mli
+++ b/helm/ocaml/paramodulation/inference.mli
@@ -1,14 +1,27 @@
 type equality =
-    Cic.term *           (* proof *)
+    int *                (* weight *)
+    proof * 
     (Cic.term *          (* type *)
      Cic.term *          (* left side *)
      Cic.term *          (* right side *)
      Utils.comparison) * (* ordering *)  
     Cic.metasenv *       (* environment for metas *)
     Cic.term list        (* arguments *)
-;;
 
-type environment = Cic.metasenv * Cic.context * CicUniv.universe_graph;;
+and proof =
+  | NoProof
+  | BasicProof of Cic.term
+  | ProofBlock of
+      Cic.substitution * UriManager.uri *
+        (Cic.name * Cic.term) * Cic.term * 
+        (* name, ty, eq_ty, left, right *)
+(*         (Cic.name * Cic.term * Cic.term * Cic.term * Cic.term) *  *)
+        (Utils.pos * equality) * proof
+  | ProofGoalBlock of proof * proof (* equality *)
+  | ProofSymBlock of Cic.term Cic.explicit_named_substitution * proof
+
+
+type environment = Cic.metasenv * Cic.context * CicUniv.universe_graph
 
 
 exception MatchingFailure
@@ -18,7 +31,12 @@ val matching:
   CicUniv.universe_graph ->
   Cic.substitution * Cic.metasenv * CicUniv.universe_graph
 
+val unification:
+  Cic.metasenv -> Cic.context -> Cic.term -> Cic.term ->
+  CicUniv.universe_graph ->
+  Cic.substitution * Cic.metasenv * CicUniv.universe_graph
 
+    
 (**
    Performs the beta expansion of the term "where" w.r.t. "what",
    i.e. returns the list of all the terms t s.t. "(t what) = where".
@@ -49,12 +67,14 @@ exception TermIsNotAnEquality;;
 val equality_of_term: ?eq_uri:UriManager.uri -> Cic.term -> Cic.term ->
   equality
 
+val term_is_equality: ?eq_uri:UriManager.uri -> Cic.term -> bool
+
 (**
    superposition_left env target source
    returns a list of new clauses inferred with a left superposition step
    the negative equation "target" and the positive equation "source"
 *)
-val superposition_left: environment -> equality -> equality -> equality list
+(* val superposition_left: environment -> equality -> equality -> equality list *)
 
 (**
    superposition_right newmeta env target source
@@ -63,18 +83,20 @@ val superposition_left: environment -> equality -> equality -> equality list
    "newmeta" is the first free meta index, i.e. the first number above the
    highest meta index: its updated value is also returned
 *)
-val superposition_right:
-  int -> environment -> equality -> equality -> int * equality list
+(* val superposition_right: *)
+(*   int -> environment -> equality -> equality -> int * equality list *)
 
-val demodulation: int -> environment -> equality -> equality -> int * equality
+(* val demodulation: int -> environment -> equality -> equality -> int * equality *)
 
+val meta_convertibility: Cic.term -> Cic.term -> bool
+  
 val meta_convertibility_eq: equality -> equality -> bool
 
 val is_identity: environment -> equality -> bool
 
 val string_of_equality: ?env:environment -> equality -> string
 
-val subsumption: environment -> equality -> equality -> bool
+(* val subsumption: environment -> equality -> equality -> bool *)
 
 val metas_of_term: Cic.term -> int list
 
@@ -82,3 +104,9 @@ val fix_metas: int -> equality -> int * equality
 
 val extract_differing_subterms:
   Cic.term -> Cic.term -> (Cic.term * Cic.term) option
+
+val build_proof_term: equality -> Cic.term
+
+val find_library_equalities:
+  dbd:Mysql.dbd -> Cic.context -> ProofEngineTypes.status -> int ->
+  equality list * int