advances on append allow to complete the long awaited "big tree" theorem by closing...

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / web / basic_2.ldw.xml

diff --git a/matita/matita/contribs/lambdadelta/basic_2/web/basic_2.ldw.xml b/matita/matita/contribs/lambdadelta/basic_2/web/basic_2.ldw.xml
index 02b1b78acc115753c2b5dc17d054d6f039f24ef1..4ccbf25fca33e834eaa5f7df0f5e65fafc807209 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/web/basic_2.ldw.xml
+++ b/matita/matita/contribs/lambdadelta/basic_2/web/basic_2.ldw.xml
@@ -32,12 +32,16 @@
          for native type assignment.
    </news>
    <news date="In progress.">
-         Closure of native validity
-        for context-sensitive extended computation.
+         Preservation of stratified native validity
+         for "big tree" computation on closures.
+   </news>
+   <news date="2014 June 9.">
+         "Big tree" strong normalization
+         for simply typed terms.
    </news>
    <news date="2014 April 16.">
          lazy equivalence on local environments
-        serves as irrelevant step in "big tree" computation
+        serves as irrelevant step in "big tree" computation on closures
          (anniversary milestone).
    </news>
    <news date="2014 January 20.">