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="2016 March 25.">
  38          Relocation with reference transforming maps (rtmap).
  39    </news>
  40
  41    <news class="alpha" date="2015 October 9.">
  42          λδ version 2A2 is started.
  43    </news>
  44
  45    <subsection name="A1">Stage "A1": "Extending the Applicability Condition"</subsection>
  46    <news class="delta" date="2015 August 27.">
  47          λδ version 2A1 appears too complex and is dismissed.
  48    </news>
  49    <news class="gamma" date="2014 October 28.">
  50          λδ version 2A1 is released.
  51    </news>
  52    <news class="beta" date="2014 September 9.">
  53          Iterated static type assignment defined (more elegantly)
  54          as a primitive notion.
  55    </news>
  56    <news class="beta" date="2014 June 18.">
  57          Preservation of stratified native validity
  58          for context-sensitive computation on terms.
  59    </news>
  60    <news class="alpha" date="2014 June 9.">
  61          Strong qrst-normalization
  62          for simply typed terms.
  63    </news>
  64    <news class="alpha" date="2014 April 16.">
  65          Lazy equivalence on local environments
  66          added as q-step to rst-computation on closures
  67          (anniversary milestone).
  68    </news>
  69    <news class="alpha" date="2014 January 20.">
  70          Parametrized slicing of local environments
  71          comprises both versions of this operation
  72          (one from basic_1, the other used in basic_2 till now).
  73    </news>
  74    <news class="alpha" date="2013 August 7.">
  75          Passive support for global environments.
  76    </news>
  77    <news class="alpha" date="2013 July 27.">
  78          Reaxiomatized β-reductum as in rt-reduction.
  79    </news>
  80    <news class="alpha" date="2013 July 20.">
  81          Context-sensitive strong rt-normalization
  82          for simply typed terms.
  83    </news>
  84    <news class="alpha" date="2013 April 16.">
  85          Reaxiomatized substitution and reduction
  86          commute with respect to subclosure
  87          (anniversary milestone).
  88    </news>
  89    <news class="alpha" date="2013 March 16.">
  90          Mutual recursive preservation of stratified native validity
  91          for rst-computation on closures.
  92    </news>
  93    <news class="alpha" date="2012 October 16.">
  94          Confluence for context-free parallel reduction on closures.
  95    </news>
  96    <news class="alpha" date="2012 July 26.">
  97          Term binders polarized to control ζ-reduction (not released).
  98    </news>
  99    <news class="alpha" date="2012 April 16.">
 100          Context-sensitive subject equivalence
 101          for atomic arity assignment
 102          (anniversary milestone).
 103    </news>
 104    <news class="alpha" date="2012 March 15.">
 105          Context-sensitive strong normalization
 106          for simply typed terms.
 107    </news>
 108    <news class="alpha" date="2012 January 27.">
 109          Support for abstract candidates of reducibility.
 110    </news>
 111    <news class="alpha" date="2011 September 21.">
 112          Confluence for context-sensitive parallel reduction on terms.
 113    </news>
 114    <news class="alpha" date="2011 September 6.">
 115          Confluence for context-free parallel reduction on terms.
 116    </news>
 117    <news class="alpha" date="2011 April 17.">
 118          λδ version 2 is started.
 119    </news>
 120
 121    <section4 name="structure">Logical Structure of the Specification</section4>
 122    <body>This table reports the specification's components and their planes.
 123    </body>
 124    <table name="basic_2_src"/>
 125
 126    <footer/>
 127 </page>