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