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