X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fcic%2FcicUtil.ml;h=9b6ece214f4d1d251c28f85b25e82c3613c058fb;hb=e9b09b14538f770b9e65083c24e3e9cf487df648;hp=c5061c62fd1f7a7ac6db4e0bbd66258ad74e3a86;hpb=987627a48b2a3c2345d1af2c2a6b1ab78aa90b58;p=helm.git

diff --git a/helm/software/components/cic/cicUtil.ml b/helm/software/components/cic/cicUtil.ml
index c5061c62f..9b6ece214 100644
--- a/helm/software/components/cic/cicUtil.ml
+++ b/helm/software/components/cic/cicUtil.ml
@@ -216,16 +216,6 @@ let attributes_of_obj = function
 
 let is_generated obj = List.exists ((=) `Generated) (attributes_of_obj obj)
 
-let arity_of_composed_coercion obj =
-  let attrs = attributes_of_obj obj in
-  try
-    let tag=List.find (function `Class (`Coercion _) -> true|_->false) attrs in
-    match tag with
-    |  `Class (`Coercion n) -> n
-    | _-> assert false 
-  with Not_found -> 0
-;;
-
 let projections_of_record obj uri =
   let attrs = attributes_of_obj obj in
   try
@@ -560,7 +550,8 @@ let alpha_equivalence =
 
 let is_sober c t =
    let rec sober_term c g = function
-      | C.Rel _ 
+      | C.Rel i                         ->
+         if i <= 0 then fun b -> false else g
       | C.Sort _  
       | C.Implicit _                    -> g      
       | C.Const (_, xnss) 
@@ -575,7 +566,8 @@ let is_sober c t =
       | C.LetIn (_, v, ty, t)           ->
          sober_term c (sober_term c (sober_term c g t) ty) v
       | C.Appl []                       
-      | C.Appl [_]                      -> fun b -> false
+      | C.Appl [_]                      
+      | C.Appl (C.Appl _ :: _)          -> fun b -> false
       | C.Appl ts                       -> sober_terms c g ts
       | C.MutCase (_, _, t, v, ts)      -> 
          sober_terms c (sober_term c (sober_term c g t) v) ts
@@ -630,11 +622,12 @@ let pp_rel out c i =
       | Some (s, _)    -> out (Printf.sprintf "%u[" i); pp_name out s; out "]"
    with Failure "nth" -> out (Printf.sprintf "%u[%i]" i (List.length c - i))
 
-let pp_implict out = function
+let pp_implicit out = function
    | None         -> out "?"
    | Some `Closed -> out "?[Closed]" 
    | Some `Type   -> out "?[Type]"
    | Some `Hole   -> out "?[Hole]"
+   | Some `Vector -> out "?[...]"
 
 let pp_uri out a =
    out (Printf.sprintf "%s<%s>" (UM.name_of_uri a) (UM.string_of_uri a)) 
@@ -642,7 +635,7 @@ let pp_uri out a =
 let rec pp_term out e c = function
    | C.Sort h                      -> pp_sort out h
    | C.Rel i                       -> pp_rel out c i
-   | C.Implicit x                  -> pp_implict out x
+   | C.Implicit x                  -> pp_implicit out x
    | C.Meta (i, iss)               ->
       let map = function None   -> out "_" | Some v -> pp_term out e c v in
       out (Printf.sprintf "?%u" i); xiter out "[" "; " "]" map iss