X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fparamodulation%2Finference.mli;h=76d48603d62d6388dfe59f8c3473771f72f14378;hb=22d39afadb3027477e4a42c315ec10518cbf47ed;hp=fab2026adf255443cacb4e58306a7c65fea51cd3;hpb=c76c8c83852508d69e7765dc9e929cdcf34af57d;p=helm.git

diff --git a/helm/ocaml/paramodulation/inference.mli b/helm/ocaml/paramodulation/inference.mli
index fab2026ad..76d48603d 100644
--- a/helm/ocaml/paramodulation/inference.mli
+++ b/helm/ocaml/paramodulation/inference.mli
@@ -1,15 +1,41 @@
 type equality =
-    Cic.term *     (* proof *)
-    (Cic.term *    (* type *)
-     Cic.term *    (* left side *)
-     Cic.term) *   (* right side *)
-    Cic.metasenv * (* environment for metas *)
-    Cic.term list  (* arguments *)
-;;
+    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 *
+        (* name, ty, eq_ty, left, right *)
+        (Cic.name * Cic.term * Cic.term * Cic.term * Cic.term) * 
+        (Utils.pos * equality) * proof
+  | ProofGoalBlock of proof * equality
+  | ProofSymBlock of Cic.term Cic.explicit_named_substitution * proof
 
 
+type environment = Cic.metasenv * Cic.context * CicUniv.universe_graph
+
+
+exception MatchingFailure
+
+val matching:
+  Cic.metasenv -> Cic.context -> Cic.term -> Cic.term ->
+  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".
@@ -45,7 +71,7 @@ val equality_of_term: ?eq_uri:UriManager.uri -> Cic.term -> Cic.term ->
    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
@@ -54,10 +80,10 @@ 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_eq: equality -> equality -> bool
 
@@ -65,4 +91,14 @@ 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
+
+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