X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Facic_procedural%2FproceduralTeX.ml;h=279ebecb99982bf1cd48b9b19cce54a6a8bdad47;hb=68dbcd02022874a025a9444aa1125b0458816fbb;hp=f4f25c402f813d6e5c545cdcfd13ffcacd6edfa0;hpb=89519c7b52e06304a94019dd528925300380cdc0;p=helm.git

diff --git a/helm/software/components/acic_procedural/proceduralTeX.ml b/helm/software/components/acic_procedural/proceduralTeX.ml
index f4f25c402..279ebecb9 100644
--- a/helm/software/components/acic_procedural/proceduralTeX.ml
+++ b/helm/software/components/acic_procedural/proceduralTeX.ml
@@ -168,9 +168,11 @@ let rec xat frm = function
    | C.AImplicit _                    -> assert false
    | C.AAppl (_, [])                  -> assert false
 
-and xats frm vs =
-   let map v = F.fprintf frm "{%a}" xat v in
-   List.iter map vs
+and xats frm = function
+   | [] -> F.fprintf frm "{}"
+   | vs -> 
+      let map v = F.fprintf frm "{%a}" xat v in
+      List.iter map vs
 
 in
 xat frm t
@@ -192,6 +194,8 @@ let rec xl frm = function
    | T.Statement _ :: l
    | T.Qed _ :: l                                          ->
       xl frm l
+   | T.Exact (t, _) :: l                                   ->
+      F.fprintf frm "\\Exact{%a}" xat t; xl frm l   
    | T.Intros (_, [r], _) :: l                             ->
       F.fprintf frm "\\Intro{%a}{%a}" xx r xl l
    | T.LetIn (r, v, _) :: l                                ->