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