natural number => Coq natural number

[helm.git] / matita / help / C / sec_usernotation.xml

diff --git a/matita/help/C/sec_usernotation.xml b/matita/help/C/sec_usernotation.xml
index 92698f824e31b155c8e0d6644d6ac21c4ad311b8..147edc0845d5746ba3e4e9675418ae9fbc3610e4 100644 (file)
--- a/matita/help/C/sec_usernotation.xml
+++ b/matita/help/C/sec_usernotation.xml
@@ -2,6 +2,17 @@
 <!-- ============ User Notation ====================== -->
 <chapter id="sec_usernotation">
  <title>Extending the syntax</title>
- &TODO;
+ <sect1>
+   <title>Introduction</title>
+   <para>
+     &TODO;
+   </para>
+   <para id="notation">
+     notation: &TODO;
+   </para>
+   <para id="interpretation">
+     interpretation: &TODO;
+   </para>
+ </sect1>
 </chapter>