X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fweb%2Fbasic_2.ldw.xml;h=28575ff0ea587c7a0b377529bd7140048bd6c21e;hb=bfd440cc2a790741616cae6b375609c6bbdc3b24;hp=be3c16d738801109e4ab49ab78e61d0a3321a900;hpb=cacd7323994f7621286dbfd93bbf4c50acfbe918;p=helm.git

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 be3c16d73..28575ff0e 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/web/basic_2.ldw.xml
+++ b/matita/matita/contribs/lambdadelta/basic_2/web/basic_2.ldw.xml
@@ -27,8 +27,13 @@
    <table name="basic_2_sum"/>
 
    <subsection name="B">Stage "B"</subsection>
+   <news class="beta" date="2019 September 3.">
+         Applicability condition is now parametrized
+         with a generic subset of numbers.
+   </news>
    <news class="beta" date="2019 June 2.">
-         Parametrized applicability condition
+         Applicability condition parametrized
+         with an initial interval of numbers
          allows λδ-2B to generalize both λδ-2A and λδ-1B.
    </news>
    <news class="beta" date="2019 April 16.">
@@ -41,7 +46,7 @@
          (i.e. no induction on the degree).
    </news>
    <news class="beta" date="2018 November 1.">
-         Extended (λδ-2A) and restricted (λδ-1A) type rules justified.
+         Extended (λδ-2A) and restricted (λδ-1B) validity rules justified.
    </news>
    <news class="alpha" date="2018 September 21.">
          λδ-2A completed with
@@ -97,7 +102,7 @@
          λδ-2A appears too complex and is dismissed.
    </news>
    <news class="gamma" date="2014 October 28.">
-         λδ version 2A is released.
+         λδ-2A is released.
    </news>
    <news class="beta" date="2014 September 9.">
          Iterated static type assignment defined (more elegantly)