X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fhelp%2FC%2Fsec_terms.xml;h=add3ba750bf181683c65ae473be1269cc745377c;hb=147217977f79d16369978a31c096f3d3fe26daae;hp=30692211e93b52de3dc55fa181dd3532fedc581e;hpb=f511e0dbbbc4c9a5d425076307c935062d78809d;p=helm.git

diff --git a/helm/software/matita/help/C/sec_terms.xml b/helm/software/matita/help/C/sec_terms.xml
index 30692211e..add3ba750 100644
--- a/helm/software/matita/help/C/sec_terms.xml
+++ b/helm/software/matita/help/C/sec_terms.xml
@@ -26,6 +26,18 @@
   <title>Terms &amp; co.</title>
   <sect2 id="lexical">
   <title>Lexical conventions</title>
+    <table frame="topbot" rowsep="0" colsep="0" role="grammar">
+      <title>qstring</title>
+      <tgroup cols="4">
+      <tbody>
+       <row>
+	<entry id="grammar.qstring">&qstring;</entry>
+	<entry>::=</entry>
+        <entry><emphasis role="bold">&quot;</emphasis><emphasis>〈〈any sequence of characters excluded &quot;〉〉</emphasis><emphasis role="bold">&quot;</emphasis></entry>
+       </row>
+      </tbody>
+     </tgroup>
+    </table>
     <table frame="topbot" rowsep="0" colsep="0" role="grammar">
       <title>id</title>
       <tgroup cols="4">
@@ -194,7 +206,7 @@
 	<entry />
 	<entry />
 	<entry>
-	  [<emphasis role="bold">on</emphasis> &nat;]
+	  [<emphasis role="bold">on</emphasis> &id;]
 	  [<emphasis role="bold">:</emphasis> &term;]
 	  <emphasis role="bold">≝</emphasis> &term;]
 	</entry>
@@ -479,7 +491,7 @@
     <para>Notice that the command is equivalent to <command>definition f: T ≝ t</command>.</para>
    </sect2>
    <sect2 id="variant">
-    <title><emphasis role="bold">variant</emphasis> &id;[<emphasis role="bold">:</emphasis> &term;] [<emphasis role="bold">≝</emphasis> &term;]</title>
+    <title><emphasis role="bold">variant</emphasis> &id;<emphasis role="bold">:</emphasis> &term; <emphasis role="bold">≝</emphasis> &term;</title>
     <titleabbrev>variant</titleabbrev>
     <para><userinput>variant f: T ≝ t</userinput></para>
     <para>Same as <command>theorem f: T ≝ t</command>, but it does not
@@ -643,11 +655,6 @@
        <row>
 	<entry id="grammar.reduction-kind">&reduction-kind;</entry>
 	<entry>::=</entry>
-        <entry><emphasis role="bold">demodulate</emphasis></entry>
-       </row>
-       <row>
-        <entry/>
-        <entry>|</entry>
         <entry><emphasis role="bold">normalize</emphasis></entry>
         <entry>Computes the βδιζ-normal form</entry>
        </row>