formula/@Notation optional

oeuvres · May 6, 2024 · e7c6e83 · e7c6e83
1 parent 96c0f95
commit e7c6e83
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/teinte.rng b/teinte.rng
@@ -2275,7 +2275,9 @@
     <define name="formula">
       <element name="formula">
         <a:documentation>Formule mathématique</a:documentation>
-        <attribute name="notation"/>
+        <optional>
+          <attribute name="notation"/>
+        </optional>
         <optional>
           <ref name="att.corresp"/>
         </optional>