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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 b2cadf0d2..f596851ee 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
@@ -19,6 +19,10 @@
Summary of the Specification
Here is a numerical acount of the specification's contents
and its timeline.
+ Nodes are counted according to the "intrinsinc complexity measure"
+ [F. Guidi: "Procedural Representation of CIC Proof Terms"
+ Journal of Automated Reasoning 44(1-2), Springer (February 2010),
+ pp. 53-78].
@@ -29,7 +33,10 @@
Closure of context-sensitive extended computation
for native validity.
-
+
+ Passive support for global environments.
+
+
Reaxiomatized β-reductum as in extended β-reduction
@@ -37,13 +44,13 @@
for simply typed terms.
- Reaxiomatized substitution and reduction
+ Reaxiomatized substitution and reduction
commute with respect to subclosure
(anniversary milestone).
Mutual recursive preservation of stratified native validity
- for hyper computation on closures.
+ for "big tree" computation on closures.
Confluence for context-free parallel reduction on closures.