matita/matita/contribs/lambdadelta/basic_2/web/basic_2.ldw.xml

   1 <?xml version="1.0" encoding="UTF-8"?>
   2
   3 <page xmlns="http://lambdadelta.info/"
   4       description = "\lambda\delta home page"
   5       title = "\lambda\delta home page"
   6       logo = "crux"
   7       head = "cic:/matita/lambdadelta/basic_2/ (core λδ version 2)"
   8 >
   9    <sitemap name="sitemap"/>
  10 <!--
  11    <section>System's Syntax and Behavior</section>
  12    <body>This is a summary of the "block structure"
  13          of the System's syntactic items and reductions.
  14    </body>
  15    <table name="basic_2_blk"/>
  16    <body>* In terms only.
  17          ** In terms and local environments only.
  18          *** In global environments only.
  19          **** Sort level k in terms only.
  20    </body>
  21 -->
  22
  23    <section4 name="summary">Summary of the Specification</section4>
  24    <body>Here is a numerical account of the specification's contents
  25          and its timeline.
  26    </body>
  27    <table name="basic_2_sum"/>
  28
  29    <subsection name="B">Stage "B"</subsection>
  30    <news class="alpha" date="Ongoing.">
  31          Context-sensitive subject equivalence
  32          for native type assignment.
  33    </news>
  34
  35    <subsection name="A2">Stage "A2": "Extending the Applicability Condition"</subsection>
  36
  37    <news class="alpha" date="2017 January 17.">
  38          Confluence for parallel r-transition on referred entries of local environments.
  39    </news>
  40    <news class="alpha" date="2016 September 15.">
  41          Confluence for context-sensitive parallel r-transition on terms.
  42    </news>
  43    <news class="alpha" date="2016 April 16.">
  44          Grammatical component reconstructed:
  45          grammar, relocation, s_transition, s_computation, static
  46          (anniversary milestone).
  47    </news>
  48    <news class="alpha" date="2016 March 25.">
  49          Relocation with reference transforming maps (rtmap).
  50    </news>
  51    <news class="alpha" date="2015 October 9.">
  52          λδ version 2A2 is started.
  53    </news>
  54
  55    <subsection name="A1">Stage "A1": "Extending the Applicability Condition"</subsection>
  56    <news class="delta" date="2015 August 27.">
  57          λδ version 2A1 appears too complex and is dismissed.
  58    </news>
  59    <news class="gamma" date="2014 October 28.">
  60          λδ version 2A1 is released.
  61    </news>
  62    <news class="beta" date="2014 September 9.">
  63          Iterated static type assignment defined (more elegantly)
  64          as a primitive notion.
  65    </news>
  66    <news class="beta" date="2014 June 18.">
  67          Preservation of stratified native validity
  68          for context-sensitive computation on terms.
  69    </news>
  70    <news class="alpha" date="2014 June 9.">
  71          Strong qrst-normalization
  72          for simply typed terms.
  73    </news>
  74    <news class="alpha" date="2014 April 16.">
  75          Lazy equivalence on local environments
  76          added as q-step to rst-computation on closures
  77          (anniversary milestone).
  78    </news>
  79    <news class="alpha" date="2014 January 20.">
  80          Parametrized slicing of local environments
  81          comprises both versions of this operation
  82          (one from basic_1, the other used in basic_2 till now).
  83    </news>
  84    <news class="alpha" date="2013 August 7.">
  85          Passive support for global environments.
  86    </news>
  87    <news class="alpha" date="2013 July 27.">
  88          Reaxiomatized β-reductum as in rt-reduction.
  89    </news>
  90    <news class="alpha" date="2013 July 20.">
  91          Context-sensitive strong rt-normalization
  92          for simply typed terms.
  93    </news>
  94    <news class="alpha" date="2013 April 16.">
  95          Reaxiomatized substitution and reduction
  96          commute with respect to subclosure
  97          (anniversary milestone).
  98    </news>
  99    <news class="alpha" date="2013 March 16.">
 100          Mutual recursive preservation of stratified native validity
 101          for rst-computation on closures.
 102    </news>
 103    <news class="alpha" date="2012 October 16.">
 104          Confluence for context-free parallel reduction on closures.
 105    </news>
 106    <news class="alpha" date="2012 July 26.">
 107          Term binders polarized to control ζ-reduction (not released).
 108    </news>
 109    <news class="alpha" date="2012 April 16.">
 110          Context-sensitive subject equivalence
 111          for atomic arity assignment
 112          (anniversary milestone).
 113    </news>
 114    <news class="alpha" date="2012 March 15.">
 115          Context-sensitive strong normalization
 116          for simply typed terms.
 117    </news>
 118    <news class="alpha" date="2012 January 27.">
 119          Support for abstract candidates of reducibility.
 120    </news>
 121    <news class="alpha" date="2011 September 21.">
 122          Confluence for context-sensitive parallel reduction on terms.
 123    </news>
 124    <news class="alpha" date="2011 September 6.">
 125          Confluence for context-free parallel reduction on terms.
 126    </news>
 127    <news class="alpha" date="2011 April 17.">
 128          λδ version 2 is started.
 129    </news>
 130
 131    <section4 name="structure">Logical Structure of the Specification</section4>
 132    <body>This table reports the specification's components and their planes.
 133    </body>
 134    <table name="basic_2_src"/>
 135
 136    <footer/>
 137 </page>