updated
authorChristian Urban <christian dot urban at kcl dot ac dot uk>
Wed, 30 Mar 2016 20:15:00 +0100
changeset 417 9f5d825580b7
parent 416 75df587e1bcd
child 418 18a6039148df
updated
Nominal/LF/index.html~
--- a/Nominal/LF/index.html~	Wed Mar 30 20:11:37 2016 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
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-<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<html>
-<head>
-  <title>The Nominal Datatype Package</title>
-  <link rel="stylesheet" href="nominal.css">
-</head>
-
-<body>
-<h1>Mechanising the Metatheory of LF</h1>
-
-<h3>by Christian Urban, James Cheney and Stefan Berghofer</h3>
-
-<h4>Abstract</h4>
-
-  LF is a dependent type theory in which many other formal systems can
-  be conveniently embedded.  However, correct use of LF relies on
-  nontrivial metatheoretic developments such as proofs of correctness
-  of decision procedures for LF's judgments.  Although detailed
-  informal proofs of these properties have been published, they have
-  not been formally verified in a theorem prover. We have formalized 
-  these properties within Isabelle/HOL using
-  the Nominal Datatype Package, closely following a recent article by
-  Harper and Pfenning.  In the process, we identified and resolved a
-  gap in one of the proofs and a small number of minor lacunae
-  in others.  We also formally derive a version of the type checking 
-  algorithm from which Isabelle/HOL can generate executable code. 
-  Besides its intrinsic interest, our formalization
-  provides a foundation for studying the adequacy of LF encodings, the
-  correctness of Twelf-style metatheoretic reasoning, and the
-  metatheory of extensions to LF.<P>
-
-<b>Technical Report</b>
-<A HREF="http://www.onf.kcl.ac.uk/staff/urbanc/Nominal/LF/techreport.pdf">[pdf]</A><BR>  
-(This technical report contains in some sections more details of our development 
-than we presented in the LICS'08 paper, and also a new section on the
-locally nameless representation of binders and on code generation.)
-<p>
-
-<b>Nominal Isabelle Development</b>
-<p> (includes all three developments discussed in the technical report)
-<A HREF="http://www.onf.kcl.ac.uk/staff/urbanc/Nominal/LF/LF.tgz">[LF.tgz]</A>
-<p>
-<hr>
-<!-- hhmts start -->
-Last modified: Fri Oct 23 17:42:50 CEST 2009
-<!-- hhmts end -->
-<a href="http://validator.w3.org/check/referer">[Validate this page.]</a>
-
-
-</body>
-</html>
-
-
-