1 <?xml version="1.0" encoding="UTF-8"?>
3 <page xmlns="http://lambda_delta.info"
4 description = "lambda_delta version 2"
5 title = "lambda_delta version 2"
6 head = "cic:/matita/lambda_delta/basic_2/ (λδ version 2)"
8 <section>System's Syntax and Behavior</section>
9 <body>This is a summary of the "block structure"
10 of the System's syntactic items and reductions.
12 <table name="basic_2_blk"/>
13 <body>* In terms only.
14 ** In terms and local environments only.
15 *** In global environments only.
16 **** Sort level k in terms only.
19 <section>Summary of the Specification</section>
20 <body>Here is a numerical acount of the specification's contents
23 <table name="basic_2_sum"/>
24 <news date="In progress.">
25 Context-sensitive subject equivalence
26 for native type assignment.
28 <news date="In progress.">
29 Closure of extended context-sensitive computation
32 <news date="In progress.">
33 Extended context-sensitive strong normalization
34 for simply typed terms.
36 <news date="2012 July 26.">
37 Term binders polarized to control ζ reduction.
39 <news date="2012 April 16.">
40 Context-sensitive subject equivalence
41 for atomic arity assignment
42 (anniversary milestone).
44 <news date="2012 March 15.">
45 Context-sensitive strong normalization
46 for simply typed terms.
48 <news date="2012 January 27.">
49 Support for abstract candidates of reducibility.
51 <news date="2011 September 21.">
52 Confluence for context-sensitive parallel reduction.
54 <news date="2011 September 6.">
55 Confluence for context-free parallel reduction.
57 <news date="2011 April 17.">
61 <section>Logical Structure of the Specification</section>
62 <body>The source files are grouped in planes and components
63 according to the following table.
64 A notation file covering the whole specification is provided.
65 The notation for the relations or functions introduced in each file
66 is shown in parentheses (? are placeholders).
68 <table name="basic_2_src"/>
70 <section>Physical Structure of the Specification</section>
71 <body>The source files are grouped in directories,
72 one for each component.