<?xml version="1.0" encoding="UTF-8"?>
<page xmlns="http://lambdadelta.info/"
- description = "lambdadelta version 2"
- title = "lambdadelta version 2"
- head = "cic:/matita/lambdadelta/basic_2/ (λδ version 2)"
+ description = "\lambda\delta home page"
+ title = "\lambda\delta home page"
+ head = "cic:/matita/lambdadelta/basic_2/ (core λδ version 2)"
>
+ <sitemap name="sitemap"/>
+<!--
<section>System's Syntax and Behavior</section>
<body>This is a summary of the "block structure"
of the System's syntactic items and reductions.
*** In global environments only.
**** Sort level k in terms only.
</body>
+-->
- <section>Summary of the Specification</section>
- <body>Here is a numerical acount of the specification's contents
+ <section4 name="summary">Summary of the Specification</section4>
+ <body>Here is a numerical account 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].
</body>
<table name="basic_2_sum"/>
- <news date="In progress.">
+
+ <subsection name="B">Stage "B"</subsection>
+ <news class="alpha" date="Ongoing.">
Context-sensitive subject equivalence
for native type assignment.
</news>
- <news date="In progress.">
- Closure of context-sensitive extended computation
- for native validity.
+
+ <subsection name="A">Stage "A": "Extending the Applicability Condition"</subsection>
+ <news class="gamma" date="2014 October 28.">
+ λδ version 2A is released.
+ </news>
+ <news class="beta" date="2014 September 9.">
+ Iterated static type assignment defined (more elegantly)
+ as a primitive notion.
</news>
- <news date="2014 January 20.">
- Parametrized slicing for local environments
+ <news class="beta" date="2014 June 18.">
+ Preservation of stratified native validity
+ for context-sensitive computation on terms.
+ </news>
+ <news class="alpha" date="2014 June 9.">
+ Strong qrst-normalization
+ for simply typed terms.
+ </news>
+ <news class="alpha" date="2014 April 16.">
+ Lazy equivalence on local environments
+ added as q-step to rst-computation on closures
+ (anniversary milestone).
+ </news>
+ <news class="alpha" date="2014 January 20.">
+ Parametrized slicing of local environments
comprises both versions of this operation
(one from basic_1, the other used in basic_2 till now).
</news>
- <news date="2013 August 7.">
+ <news class="alpha" date="2013 August 7.">
Passive support for global environments.
</news>
- <news date="2013 July 27.">
- Reaxiomatized β-reductum as in extended β-reduction
+ <news class="alpha" date="2013 July 27.">
+ Reaxiomatized β-reductum as in rt-reduction.
</news>
- <news date="2013 July 20.">
- Context-sensitive extended strong normalization
+ <news class="alpha" date="2013 July 20.">
+ Context-sensitive strong rt-normalization
for simply typed terms.
</news>
- <news date="2013 April 16.">
+ <news class="alpha" date="2013 April 16.">
Reaxiomatized substitution and reduction
commute with respect to subclosure
(anniversary milestone).
</news>
- <news date="2013 March 16.">
+ <news class="alpha" date="2013 March 16.">
Mutual recursive preservation of stratified native validity
- for "big tree" computation on closures.
+ for rst-computation on closures.
</news>
- <news date="2012 October 16.">
+ <news class="alpha" date="2012 October 16.">
Confluence for context-free parallel reduction on closures.
</news>
- <news date="2012 July 26.">
- Term binders polarized to control ζ-reduction.
+ <news class="alpha" date="2012 July 26.">
+ Term binders polarized to control ζ-reduction (not released).
</news>
- <news date="2012 April 16.">
+ <news class="alpha" date="2012 April 16.">
Context-sensitive subject equivalence
for atomic arity assignment
(anniversary milestone).
</news>
- <news date="2012 March 15.">
+ <news class="alpha" date="2012 March 15.">
Context-sensitive strong normalization
for simply typed terms.
</news>
- <news date="2012 January 27.">
+ <news class="alpha" date="2012 January 27.">
Support for abstract candidates of reducibility.
</news>
- <news date="2011 September 21.">
+ <news class="alpha" date="2011 September 21.">
Confluence for context-sensitive parallel reduction on terms.
</news>
- <news date="2011 September 6.">
+ <news class="alpha" date="2011 September 6.">
Confluence for context-free parallel reduction on terms.
</news>
- <news date="2011 April 17.">
+ <news class="alpha" date="2011 April 17.">
Specification starts.
</news>
- <section>Logical Structure of the Specification</section>
- <body>The source files are grouped in planes and components
- according to the following table.
- Notation files covering the whole specification are provided.
- The notation for the relations or functions introduced in each file
- is shown in parentheses (? are placeholders).
+ <section4 name="structure">Logical Structure of the Specification</section4>
+ <body>This table reports the specification's components and their planes.
</body>
<table name="basic_2_src"/>
- <section>Physical Structure of the Specification</section>
- <body>The source files are grouped in directories,
- one for each component.
- </body>
<footer/>
</page>
projects / helm.git / blobdiff