X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fwww%2Flambdadelta%2Fweb%2Fhome%2Fspecification.ldw.xml;h=050a17328536089873fad5eb223d134d6a70351c;hb=2f6f2b7c01d47d23f61dd48d767bcb37aecdcfea;hp=857516bcd66077257ddb2fd5fe583d968e714724;hpb=3bbf660fbb8eb231292a9a5d0befb676f4a376d4;p=helm.git
diff --git a/helm/www/lambdadelta/web/home/specification.ldw.xml b/helm/www/lambdadelta/web/home/specification.ldw.xml
index 857516bcd..050a17328 100644
--- a/helm/www/lambdadelta/web/home/specification.ldw.xml
+++ b/helm/www/lambdadelta/web/home/specification.ldw.xml
@@ -3,107 +3,178 @@
Computer-checked formal specifications
- λδ is developed as a machine-checked digital specification.
- It comes in several versions listed in the next table,
- which includes the major milestones.
+ The systems of the λδ family are developed as machine-checked digital specifications,
+ and are listed in the next table, which includes the major milestones.
The life cycle of a specification consists of four periods.
-
+
the definitions are designed and the major propositions are proved,
then the calculus is announced with a presentation.
-
+
major changes and additions may occur before the calculus is released on paper.
-
+
subsequent improvements occur until the specification is completed or superseded,
while major changes and additions are announced and reported on paper.
-
- after its conclusion, the specification is modified just for maintenance.
+
+ after its conclusion, the specification is modified just for maintenance.
+
+
+ System and Specification
+ (updated ).
+
+
Informational pages on the specifications are provided.
-
-
+
+
nodes are counted according to the "intrinsic complexity measure"
[F. Guidi: "Procedural Representation of CIC Proof Terms"
- Journal of Automated Reasoning 44(1-2), Springer (February 2010), pp. 53-78].
+ Journal of Automated Reasoning 44(1-2), Springer (February 2010), pp. 53-78].
-
-
+
+
from the logical standpoint, the source scripts are grouped in "planes"
and these are grouped in "components";
the notation for the relations or functions
introduced in each script, is shown in parentheses (? are placeholders).
+
+
+ λδ version 3 (proposed)
+
+ The formal specification of λδ version 3
+ is forthcoming.
+
+
- λδ version 2 (active)
+ λδ version 2 (active)
The formal specification of λδ version 2
- is available in the following formats:
+ is available in the following formats.
+
+
+
+
+ the scripts are checked by the latest version of Matita from
+ HELM Git repository.
-
+
- lambdadelta_2 for Matita 0.99.2
- (revised ).
+ lambdadelta_2B for Matita 0.99.4
+ (revised ).
Source scripts.
+ Documentation (J2a).
+
+
+ repackaged without λδ-ground_2.
+
+
+ released [Git revision: 2019-11-19 20:45:15].
+
- The scripts are grouped in directories, first by part, then by component.
+ The scriprs depend on the package
+ lambdadelta_ground.
-
- the scripts are checked by the latest version of Matita from
- HELM Subversion repository
- at path <trunk/matita/>.
+ Informational pages on the parts of the specification:
+ Syntax,
+ Core,
+ Applications.
+
+
+
+
+
+ lambdadelta_2A for Matita 0.99.2
+ (revised ).
+ Source scripts.
+ Documentation (R2c).
+
+
+ repackaged on the basis of λδ-ground_2.
+
+
+ repackaged (was lambdadelta_2A1).
+
+
+ released [Git revision: 2014-10-28 17:46:26].
+
+
+
+ The scriprs depend on the package
+ lambdadelta_ground.
+
+
+ Informational pages on the parts of the specification:
+ Core.
-
- Informational pages on the parts of the specification:
- Background,
- Core,
- Applications.
-
+
+
+ lambdadelta_ground for Matita 0.99.2
+ (revised ).
+ Source scripts.
+
+
+ released [Git revision: 2020-02-27 22:45:50].
+
+
+
+ Informational pages on the parts of the specification:
+ Core.
+
+
- λδ version 1 (superseded)
+ λδ version 1 (superseded)
The formal specification of λδ version 1
- is available in the following formats:
+ is available in the following formats.
-
+
- lambdadelta_1 for Coq 7.3.1
- (revised ).
+ lambdadelta_1A for Coq 7.3.1
+ (revised ).
Source scripts.
+ Documentation (J1a).
-
+
+ repackaging (was lambdadelta_1).
+
+
17 new lemmas and former lemma "eq_nat_dec" renamed as "nat_dec_neg".
-
+
- The scripts are grouped in directories, one for each part.
+ Informational pages on the parts of the specification:
+ Background,
+ Core.