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="2018 June 8.">
  38          Behavioral component rt_computation completed.
  39    </news>
  40    <news class="alpha" date="2018 April 16.">
  41          "Big tree" theorem
  42          (anniversary milestone).
  43    </news>
  44    <news class="alpha" date="2018 March 9.">
  45          Support for rt-computation completed.
  46    </news>
  47    <news class="alpha" date="2017 October 17.">
  48          Exclusion binder in local environments.
  49          Syntactic component updated:
  50          syntax, relocation, s_transition, s_computation, static, i_static.
  51    </news>
  52    <news class="alpha" date="2017 April 16.">
  53          Strong rt-normalization
  54          for simply typed terms
  55          (anniversary milestone).
  56    </news>
  57    <news class="alpha" date="2017 March 16.">
  58          Behavioral component rt_transition completed.
  59    </news>
  60    <news class="alpha" date="2017 February 19.">
  61          Generic candidates of reducibility.
  62    </news>
  63    <news class="alpha" date="2017 January 17.">
  64          Confluence for parallel r-transition on referred entries of local environments.
  65    </news>
  66    <news class="alpha" date="2016 September 15.">
  67          Confluence for context-sensitive parallel r-transition on terms.
  68    </news>
  69    <news class="alpha" date="2016 April 16.">
  70          Syntactic component completed:
  71          syntax, relocation, s_transition, s_computation, static
  72          (anniversary milestone).
  73    </news>
  74    <news class="alpha" date="2016 March 25.">
  75          Relocation with reference transforming maps (rtmap).
  76    </news>
  77    <news class="alpha" date="2015 October 9.">
  78          λδ version 2A2 is started.
  79    </news>
  80
  81    <subsection name="A1">Stage "A1": "Extending the Applicability Condition"</subsection>
  82    <news class="delta" date="2015 August 27.">
  83          λδ version 2A1 appears too complex and is dismissed.
  84    </news>
  85    <news class="gamma" date="2014 October 28.">
  86          λδ version 2A1 is released.
  87    </news>
  88    <news class="beta" date="2014 September 9.">
  89          Iterated static type assignment defined (more elegantly)
  90          as a primitive notion.
  91    </news>
  92    <news class="beta" date="2014 June 18.">
  93          Preservation of stratified native validity
  94          for context-sensitive computation on terms.
  95    </news>
  96    <news class="alpha" date="2014 June 9.">
  97          Strong qrst-normalization
  98          for simply typed terms.
  99    </news>
 100    <news class="alpha" date="2014 April 16.">
 101          Lazy equivalence on local environments
 102          added as q-step to rst-computation on closures
 103          (anniversary milestone).
 104    </news>
 105    <news class="alpha" date="2014 January 20.">
 106          Parametrized slicing on local environments
 107          comprises both versions of this operation
 108          (one from basic_1, the other used in basic_2 till now).
 109    </news>
 110    <news class="alpha" date="2013 August 7.">
 111          Passive support for global environments.
 112    </news>
 113    <news class="alpha" date="2013 July 27.">
 114          Reaxiomatized β-reductum as in rt-reduction.
 115    </news>
 116    <news class="alpha" date="2013 July 20.">
 117          Context-sensitive strong rt-normalization
 118          for simply typed terms.
 119    </news>
 120    <news class="alpha" date="2013 April 16.">
 121          Reaxiomatized substitution and reduction
 122          commute with respect to subclosure
 123          (anniversary milestone).
 124    </news>
 125    <news class="alpha" date="2013 March 16.">
 126          Mutual recursive preservation of stratified native validity
 127          for rst-computation on closures.
 128    </news>
 129    <news class="alpha" date="2012 October 16.">
 130          Confluence for context-free parallel reduction on closures.
 131    </news>
 132    <news class="alpha" date="2012 July 26.">
 133          Term binders polarized to control ζ-reduction (not released).
 134    </news>
 135    <news class="alpha" date="2012 April 16.">
 136          Context-sensitive subject equivalence
 137          for atomic arity assignment
 138          (anniversary milestone).
 139    </news>
 140    <news class="alpha" date="2012 March 15.">
 141          Context-sensitive strong normalization
 142          for simply typed terms.
 143    </news>
 144    <news class="alpha" date="2012 January 27.">
 145          Generic candidates of reducibility.
 146    </news>
 147    <news class="alpha" date="2011 September 21.">
 148          Confluence for context-sensitive parallel reduction on terms.
 149    </news>
 150    <news class="alpha" date="2011 September 6.">
 151          Confluence for context-free parallel reduction on terms.
 152    </news>
 153    <news class="alpha" date="2011 April 17.">
 154          λδ version 2 is started.
 155    </news>
 156
 157    <section4 name="structure">Logical Structure of the Specification</section4>
 158    <body>This table reports the specification's components and their planes.
 159    </body>
 160    <table name="basic_2_src"/>
 161
 162    <footer/>
 163 </page>