X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fwww%2Flambda_delta%2Fimplementation.html;fp=helm%2Fwww%2Flambda_delta%2Fimplementation.html;h=0000000000000000000000000000000000000000;hb=207a37632296335aa8db7b22482f91634f74e4e1;hp=598daae78cd41d6df3a1258116d5db75e3e797df;hpb=691c330235597faab8ad7be34242bc545d4c4023;p=helm.git diff --git a/helm/www/lambda_delta/implementation.html b/helm/www/lambda_delta/implementation.html deleted file mode 100644 index 598daae78..000000000 --- a/helm/www/lambda_delta/implementation.html +++ /dev/null @@ -1,325 +0,0 @@ - - - - - lambda_delta home page - - - - - -
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The Formal System λδ (lambda_delta)
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Towards the unification of terms, types, environments and - contexts

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  • Resources
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Computer-checked formal - specifications [Butterfly]

- Resource - 1 below provides for the statically generated natural language - representation of - λδ meta-theory (faster rendering w.r.t. resource 2 below).
- Resource 2 below - provides - for the dynamically generated natural - language representation of - λδ meta-theory (powered by the HELM - rendering engine).
- Remarkably, λδ was born and developed in the digital - format of resource 3 - below, which is not the - formal counterpart of some informal material previously - written on - paper (as it happens for most currently digitalized - Mathematics).
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  1. F. Guidi: lambda_delta - (revised 2011-09). - Formal - specification for Matita 0.5 - (HTML pages generated - by the HELM - rendering engine)
    - Here are the most relevant theorems proved in the - formal specification: - -
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  2. F. Guidi: lambda_delta - (revised 2011-09). - Formal - specification for Matita 0.5 (HELM directory).
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  3. F. Guidi: lambda_delta_1 - (revised 2011-09). -Formal - specification for Coq - 7.3.1 - (source - proof scripts). BibTeX entry.
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Tools [Butterfly]

- [Crux Logo] The λδ - Digital - Library - (LDDL) is part of HELM - and contains a set of - resources expressed in λδ.
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  • Contents: - Landau's "Grundlagen - der Analysis" (from - Jutting's specification in Automath).
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- [Helena Logo] Helena - is a λδ - processor, - implemented in Caml - as a part of - the HELM software, - meant for - testing the stable features of the calculus as well as the - unstable - ones.
- The processor source code is available in the directory /trunk/helm/software/helena/ - of the HELM - Svn - repository. The Svn revisions containing the stable - versions - of  Helena are indicated below.
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  • Version 0.8.2. - In - progress.
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  • Version 0.8.1 - (2010-11). - Exploits a subset of "complete_rg" λδ as the - intermediate language. - Features importation from ".hln" files containing λδ - textual syntax. - The overall validation speed of the "Grundlagen - der - Analysis" increases of 22% with respect to - version 0.8.0. [Svn - revision: 11032] (archived - source code) - -
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  • Version 0.8.0 (2009-09). - Supports - "basic_rg" λδ with naive implementation of - impredicative sort - inclusion. Features - importation from Automath - and exportation to XML. - [Svn - revision: 10304] (archived - source code)
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    • 2009-09. - Jutting's specification of Landau's "Grundlagen - der - Analysis" enters λδ Digital Library.
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    • 2009-06. - Jutting's specification of Landau's "Grundlagen - der - Analysis" is - successfully processed, enabling sort inclusion.
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Other resources [Butterfly]

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  • A Jed mode - for - editing ".hln" files (containing λδ textual syntax): helena.sl - (revised 2010-11).
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  • A logo for λδ: crux_177.png - (revised 2012-09).
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- [Valid HTML 4.01 Transitional] [Use Any - Browser Here] [PNG Used Here]
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- Last update 2012-10-16 by Ferruccio - Guidi
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