Initial work on setoids:

[helm.git] / components / grafite_parser / grafiteParser.ml

diff --git a/components/grafite_parser/grafiteParser.ml b/components/grafite_parser/grafiteParser.ml
index ab15311dfd219c09bb7af3cc51b920724b62f071..19f9e359e85aff4844fc66a3f00812f0e864acf7 100644 (file)
--- a/components/grafite_parser/grafiteParser.ml
+++ b/components/grafite_parser/grafiteParser.ml
@@ -573,6 +573,15 @@ EXTEND
     | IDENT "default" ; what = QSTRING ; uris = LIST1 URI ->
        let uris = List.map UriManager.uri_of_string uris in
         GrafiteAst.Default (loc,what,uris)
+    | IDENT "relation" ; aeq = tactic_term ; "on" ; a = tactic_term ;
+      refl = OPT [ IDENT "reflexivity" ; IDENT "proved" ; IDENT "by" ;
+                   refl = tactic_term -> refl ] ;
+      sym = OPT [ IDENT "symmetry" ; IDENT "proved" ; IDENT "by" ;
+                   sym = tactic_term -> sym ] ;
+      trans = OPT [ IDENT "transitivity" ; IDENT "proved" ; IDENT "by" ;
+                   trans = tactic_term -> trans ] ;
+      "as" ; id = IDENT ->
+       GrafiteAst.Relation (loc,id,a,aeq,refl,sym,trans)
   ]];
   lexicon_command: [ [
       IDENT "alias" ; spec = alias_spec ->