X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fcic_unification%2FcicMetaSubst.mli;h=fd770215a1bb1e42ebf5ef70c830fcac416fc421;hb=2f4e2076f4b53f0c3e277bff67268cb80bfae967;hp=3d1032aa85b629092ea3b4ca6f8a4a90aeb77506;hpb=0de03e5561ce39a3e684e367be7f5b7979575af9;p=helm.git

diff --git a/helm/ocaml/cic_unification/cicMetaSubst.mli b/helm/ocaml/cic_unification/cicMetaSubst.mli
index 3d1032aa8..fd770215a 100644
--- a/helm/ocaml/cic_unification/cicMetaSubst.mli
+++ b/helm/ocaml/cic_unification/cicMetaSubst.mli
@@ -26,18 +26,14 @@
 exception AssertFailure of string
 exception MetaSubstFailure of string
 
-val delift : 
- Cic.context -> Cic.metasenv -> (Cic.term option) list -> Cic.term ->
-   Cic.term * Cic.metasenv
-
 (* The entry (i,t) in a substitution means that *)
 (* (META i) have been instantiated with t.      *)
 type substitution = (int * Cic.term) list
 
-(* unwind_subst metasenv subst                         *)
-(* unwinds [subst] w.r.t. itself.                      *)
-(* It can restrict some metavariable in the [metasenv] *)
-val unwind_subst : Cic.metasenv -> substitution -> substitution * Cic.metasenv
+val delift : 
+  int -> substitution -> Cic.context -> Cic.metasenv ->
+  (Cic.term option) list -> Cic.term ->
+    Cic.term * Cic.metasenv * substitution
 
 (* apply_subst subst t                     *)
 (* applies the substitution [subst] to [t] *)
@@ -55,20 +51,26 @@ val apply_subst : substitution -> Cic.term -> Cic.term
 (*  during the unwinding the eta-expansions are undone.                 *)
 (* [subst] must be already unwinded                                     *)
 val apply_subst_reducing :
- substitution -> (int * int) option -> Cic.term -> Cic.term
+ (int * int) option -> substitution -> Cic.term -> Cic.term
 
 val apply_subst_context : substitution -> Cic.context -> Cic.context
 
 (** {2 Pretty printers} *)
 
 val ppcontext: ?sep: string -> substitution -> Cic.context -> string
-val ppmetasenv: ?sep: string -> substitution -> Cic.metasenv -> string
+val ppmetasenv: ?sep: string -> Cic.metasenv -> substitution -> string
 val ppsubst: substitution -> string
+val ppterm: substitution -> Cic.term -> string
 
-(* From now on we recreate a kernel abstraction where substitutions are part of
+(* {2 Kernel wrappers}
+ * From now on we recreate a kernel abstraction where substitutions are part of
  * the calculus *)
 
+val lift : substitution -> int -> Cic.term -> Cic.term
+val subst: substitution -> Cic.term -> Cic.term -> Cic.term
 val whd: substitution -> Cic.context -> Cic.term -> Cic.term
+val are_convertible: substitution -> Cic.context -> Cic.term -> Cic.term -> bool
+
 val type_of_aux':
   Cic.metasenv -> substitution -> Cic.context -> Cic.term -> Cic.term