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