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=fd37f2b13b513f1e72cf38eace6f7eef82ada78c;hb=361a91ade954f92013da892c62d41e3a7168cfc0;hp=dcee0200a54f1e1aa6747b0b7c913ec1c334e5f0;hpb=08cb57944c0df08611d4f35d286e46c0d13e4813;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 dcee0200a..fd37f2b13 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 @@ -1,10 +1,12 @@ + + -
Summary of the Specification
- Here is a numerical acount of the specification's contents + Summary of the Specification + Here is a numerical account of the specification's contents and its timeline. - + + Stage "B" + Context-sensitive subject equivalence for native type assignment. - - Closure of extended context-sensitive computation - for native validity. + + Stage "A": "Extending the Applicability Condition" + + λδ version 2A2 is started. + + + λδ version 2A1 appears too complex and is dismissed. + + + λδ version 2A1 is released. + + + Iterated static type assignment defined (more elegantly) + as a primitive notion. - - Extended context-sensitive strong normalization + + Preservation of stratified native validity + for context-sensitive computation on terms. + + + Strong qrst-normalization for simply typed terms. - + + Lazy equivalence on local environments + added as q-step to rst-computation on closures + (anniversary milestone). + + + Parametrized slicing of 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 rt-reduction. + + + Context-sensitive strong rt-normalization + for simply typed terms. + + + Reaxiomatized substitution and reduction + commute with respect to subclosure + (anniversary milestone). + + + Mutual recursive preservation of stratified native validity + for rst-computation on closures. + + Confluence for context-free parallel reduction on closures. - - Term binders polarized to control ζ reduction. + + Term binders polarized to control ζ-reduction (not released). - + Context-sensitive subject equivalence for atomic arity assignment (anniversary milestone). - + Context-sensitive strong normalization for simply typed terms. - + Support for abstract candidates of reducibility. - + Confluence for context-sensitive parallel reduction on terms. - + Confluence for context-free parallel reduction on terms. - - Specification starts. + + λδ version 2 is started. -
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. - The notation for the relations or functions introduced in each file - is shown in parentheses (? are placeholders). + Logical Structure of the Specification + This table reports the specification's components and their planes.
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Physical Structure of the Specification
- The source files are grouped in directories, - one for each component. -