X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fmathql%2Fxmathql.dtd;fp=helm%2Fmathql%2Fxmathql.dtd;h=7b4f71045949c6dd43e82227e2a295caba74ee45;hb=5a3c6e3eb8f8ed08152c43671ff21a04cbc57dac;hp=a5bd242e7b108bd98d09e8386aba45db3527edcf;hpb=2894cb7d5855ac2003e81c9383c3cf3843973d9e;p=helm.git

diff --git a/helm/mathql/xmathql.dtd b/helm/mathql/xmathql.dtd
index a5bd242e7..7b4f71045 100644
--- a/helm/mathql/xmathql.dtd
+++ b/helm/mathql/xmathql.dtd
@@ -50,13 +50,11 @@
 <!ENTITY % position '(Conclusion|Hypothesis|Body|MainConclusion|
                         MainHypothesis)'>
 
-<!ENTITY % order '(ascendant|descendant)'>
-
 <!ENTITY % bool '(True|False)'>
 
 <!-- MathQL query expression declaration -->
 
-<!ENTITY % queryexpr '(Union|Intersect|Diff|SortBy|Select|Exists|Use|UsedBy|
+<!ENTITY % queryexpr '(Union|Intersect|Diff|Select|Exists|Use|UsedBy|
                    ConstructorsOf|Pattern|InTheory|TheoryRefTo|TypeOf|
                    SuperTypeOf|SubTypeOf|Group)'>
 
@@ -83,8 +81,6 @@
 
 <!ELEMENT Diff (%queryexpr;, %queryexpr;)>
 
-<!ELEMENT SortBy (%queryexpr;, SortField)>
-
 <!ELEMENT Select (In, Where)>
 
 <!ELEMENT Exists (In, Where)>
@@ -123,10 +119,6 @@
 
 <!-- MathQL query sub-expressions -->
 
-<!ELEMENT SortField %functexpr;>
-<!ATTLIST SortField 
-          order %order; #IMPLIED>
-
 <!ELEMENT In %queryexpr;>
 
 <!ELEMENT Where %boolexpr;>