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=bf8f1060858e0f67cd34c4af10745d40d502ded7;hb=87f57ddc367303c33e19c83cd8989cd561f3185b;hp=dcf2f4693e22a87943ff656690ca49a829944f44;hpb=0098ddc7269a3fc4a554cf386d2a234d61d53d44;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 dcf2f4693..bf8f10608 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
@@ -27,13 +27,37 @@
Stage "B"
-
- Context-sensitive subject equivalence
- for native type assignment.
+
+ Parametrized applicability condition
+ allows λδ-2B to generalize both λδ-1A and λδ-1B.
+
+
+ Extended (λδ-2A) and restricted (λδ-1A) validity is decidable
+ (anniversary milestone).
+
+
+ Preservation of validity for rt-computation
+ does not need the sort degree parameter
+ (i.e. no induction on the degree).
+
+
+ Extended (λδ-2A) and restricted (λδ-1A) type rules justified.
+
+
+ λδ-2A completed with
+ confluence of rt-computation and
+ preservation of validity for rt-computation.
+
+
+ Behavioral component rt_computation completed.
+
+
+ "Big tree" theorem
+ (anniversary milestone).
+
+
+ Support for rt-computation completed.
-
- Stage "A2": "Extending the Applicability Condition"
-
Exclusion binder in local environments.
Syntactic component updated:
@@ -45,8 +69,7 @@
(anniversary milestone).
- First behavioral component reconstructed:
- rt_transition.
+ Behavioral component rt_transition completed.
Generic candidates of reducibility.
@@ -58,7 +81,7 @@
Confluence for context-sensitive parallel r-transition on terms.
- Syntactic component reconstructed:
+ Syntactic component completed:
syntax, relocation, s_transition, s_computation, static
(anniversary milestone).
@@ -66,15 +89,15 @@
Relocation with reference transforming maps (rtmap).
- λδ version 2A2 is started.
+ λδ-2B is started.
- Stage "A1": "Extending the Applicability Condition"
+ Stage "A"
- λδ version 2A1 appears too complex and is dismissed.
+ λδ-2A appears too complex and is dismissed.
- λδ version 2A1 is released.
+ λδ version 2A is released.
Iterated static type assignment defined (more elegantly)
@@ -142,7 +165,7 @@
Confluence for context-free parallel reduction on terms.
- λδ version 2 is started.
+ λδ-2A is started.
Logical Structure of the Specification