X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fweb%2Fbasic_2.ldw.xml;h=cc0a402b0a2f9f084be59f80da988e4e6a1707fb;hb=f7994db705d6c1200cc3e9f1827b7d9f6d0ad001;hp=b2cadf0d28d42d383f7858061959bb851f030c97;hpb=f62eeb3c7824564ccbe4fff6e75ddee46ca39cc0;p=helm.git diff --git a/matita/matita/contribs/lambdadelta/basic_2/web/basic_2.ldw.xml b/matita/matita/contribs/lambdadelta/basic_2/web/basic_2.ldw.xml index b2cadf0d2..cc0a402b0 100644 --- a/matita/matita/contribs/lambdadelta/basic_2/web/basic_2.ldw.xml +++ b/matita/matita/contribs/lambdadelta/basic_2/web/basic_2.ldw.xml @@ -1,8 +1,8 @@
System's Syntax and Behavior
@@ -19,6 +19,10 @@
Summary of the Specification
Here is a numerical acount of the specification's contents and its timeline. + Nodes are counted according to the "intrinsinc complexity measure" + [F. Guidi: "Procedural Representation of CIC Proof Terms" + Journal of Automated Reasoning 44(1-2), Springer (February 2010), + pp. 53-78]. @@ -29,7 +33,15 @@ Closure of context-sensitive extended computation for native validity. - + + Parametrized slicing for local environments + comprises both versions of this operation + (one from basic_1, the other used in basic_2 till now). + + + Passive support for global environments. + + Reaxiomatized β-reductum as in extended β-reduction @@ -37,13 +49,13 @@ for simply typed terms. - Reaxiomatized substitution and reduction + Reaxiomatized substitution and reduction commute with respect to subclosure (anniversary milestone). Mutual recursive preservation of stratified native validity - for hyper computation on closures. + for "big tree" computation on closures. Confluence for context-free parallel reduction on closures. @@ -76,7 +88,7 @@
Logical Structure of the Specification
The source files are grouped in planes and components according to the following table. - A notation file covering the whole specification is provided. + Notation files covering the whole specification are provided. The notation for the relations or functions introduced in each file is shown in parentheses (? are placeholders).