X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fweb%2Fbasic_2.ldw.xml;h=e1457f0b75bd1855207461c629369c0c446da0b0;hp=d52fc854c5a6666264b7701f7df597aead2442d7;hb=4173283e148199871d787c53c0301891deb90713;hpb=d2e0a33c75842a10574ef904097803e02571536c
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 d52fc854c..e1457f0b7 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
@@ -27,33 +27,69 @@
Stage "B"
-
- Context-sensitive subject equivalence
- for native type assignment.
+
+ Preservation of validity for rt-computation
+ does not need the sort degree parameter
+ (i.e. no induction on the degree).
+
+
+ Extended (λδ-2) and restricted (λδ-1) 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.
+
+
+ Exclusion binder in local environments.
+ Syntactic component updated:
+ syntax, relocation, s_transition, s_computation, static, i_static.
+
+
+ Strong rt-normalization
+ for simply typed terms
+ (anniversary milestone).
+
+
+ Behavioral component rt_transition completed.
+
+
+ Generic candidates of reducibility.
+
+
+ Confluence for parallel r-transition on referred entries of local environments.
+
+
+ Confluence for context-sensitive parallel r-transition on terms.
-
- Stage "A2": "Extending the Applicability Condition"
-
- Grammatical component reconstructed:
- grammar, relocation, s_transition, s_computation, static
+ Syntactic component completed:
+ syntax, relocation, s_transition, s_computation, static
(anniversary milestone).
-
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)
@@ -73,7 +109,7 @@
(anniversary milestone).
- Parametrized slicing of local environments
+ Parametrized slicing on local environments
comprises both versions of this operation
(one from basic_1, the other used in basic_2 till now).
@@ -112,7 +148,7 @@
for simply typed terms.
- Support for abstract candidates of reducibility.
+ Generic candidates of reducibility.
Confluence for context-sensitive parallel reduction on terms.
@@ -121,7 +157,7 @@
Confluence for context-free parallel reduction on terms.
- λδ version 2 is started.
+ λδ-2A is started.
Logical Structure of the Specification