<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:08:42 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:34:08 +0200</div>
</body>
</html>
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:08:42 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:34:08 +0200</div>
</body>
</html>
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:08:42 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:34:08 +0200</div>
</body>
</html>
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:08:42 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:34:08 +0200</div>
</body>
</html>
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:08:42 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:34:08 +0200</div>
</body>
</html>
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:08:42 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:34:08 +0200</div>
</body>
</html>
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:08:42 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:34:08 +0200</div>
</body>
</html>
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:08:41 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:34:08 +0200</div>
</body>
</html>
+3% with optimized compilation, +5% without optimized compilation.
[Svn revision: 13108] (<a href="http://lambdadelta.info/download/helena_0.8.3.tar.gz">archived source code</a>).
<ul>
- <li>
+ <li class="">
<span class="emph gamma">2015-06.</span>
The corrected specification of Landau's "Grundlagen der Analysis"
is successfully validated in a λProlog implementation of λδ version 3.
<a href="http://lambdadelta.info/documentation.html#ldJ3a">Documentation (J3a)</a>.
[Svn revision: 13035] (<a href="http://lambdadelta.info/download/helena_0.8.2.tar.gz">archived source code</a>).
<ul>
- <li>
+ <li class="">
The specification of Landau's "Grundlagen der Analysis"
for <a href="http://coq.inria.fr/">Coq 8</a>:
<a href="http://lambdadelta.info/download/grundlagen_2.v">grundlagen_2.v</a>
(revised <span class="emph gamma">2015-02</span>).
</li>
- <li>
+ <li class="">
The specification of Landau's "Grundlagen der Analysis"
for <a href="http://matita.cs.unibo.it/">Matita 0.99.2</a>:
<a href="http://lambdadelta.info/download/grundlagen_2.tar.bz2">grundlagen_2.tar.bz2</a>
(revised <span class="emph gamma">2015-02</span>).
</li>
- <li>
+ <li class="">
The corrected specification of Landau's "Grundlagen der Analysis":
<a href="http://lambdadelta.info/download/grundlagen_2.aut">grundlagen_2.aut</a>
(revised <span class="emph gamma">2014-12</span>).
</li>
- <li>
+ <li class="">
<span class="emph gamma">2015-02.</span>
The translated specification of Landau's "Grundlagen der Analysis"
is successfully validated in CC by <a href="http://coq.inria.fr/">Coq 8.4.3</a>.
</li>
- <li>
+ <li class="">
<span class="emph gamma">2014-12.</span>
The corrected specification of Landau's "Grundlagen der Analysis"
is successfully validated in λδ version 3.
increases of 22% with respect to version 0.8.0.
[Svn revision: 11032] (<a href="http://lambdadelta.info/download/helena_0.8.1.tar.gz">archived source code</a>).
<ul>
- <li>
+ <li class="">
A <a href="http://www.jedsoft.org/jed/">Jed mode</a>
for editing ".hln" files (containing λδ textual syntax):
<a href="http://lambdadelta.info/download/helena.sl">helena.sl</a>
(revised <span class="emph alpha">2010-11</span>).
</li>
- <li>
+ <li class="">
<span class="emph beta">2009-12.</span>
Helena appears in F. Wiedijk's
<a href="http://www.cs.ru.nl/%7Efreek/digimath/index.html#helena">
<a href="http://lambdadelta.info/documentation.html#ldR2a">Documentation (R2a)</a>.
[Svn revision: 10304] (<a href="http://lambdadelta.info/download/helena_0.8.0.tar.gz">archived source code</a>).
<ul>
- <li>
+ <li class="">
A <a href="http://www.jedsoft.org/jed/">Jed mode</a>
for editing ".aut" files
(containing <a href="http://www.win.tue.nl/automath/">Automath</a> textual syntax):
<a href="http://lambdadelta.info/download/automath.sl">automath.sl</a>
(revised <span class="emph gamma">2008-07</span>).
</li>
- <li>
+ <li class="">
<span class="emph beta">2009-09.</span>
Jutting's specification of Landau's "Grundlagen der Analysis"
enters λδ Digital Library.
</li>
- <li>
+ <li class="">
<span class="emph beta">2009-06.</span>
Jutting's specification of Landau's "Grundlagen der Analysis"
is successfully processed, enabling sort inclusion.
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:08:42 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:34:08 +0200</div>
</body>
</html>
<span class="emph gamma">February 2015.</span>
<a href="http://lambdadelta.info/implementation.html#v2">"Helena 0.8.2"</a> is updated.
<ul>
- <li>
+ <li class="">
The translated specification of Landau's "Grundlagen der Analysis"
is validated in CC by <a href="http://coq.inria.fr/">Coq 8.4.3</a>.
</li>
<span class="emph gamma">December 2014.</span>
<a href="http://lambdadelta.info/implementation.html#v2">"Helena 0.8.2"</a> is released.
<ul>
- <li>
+ <li class="">
The corrected specification of Landau's "Grundlagen der Analysis"
is validated in λδ version 3.
</li>
<span class="emph alpha">December 2012.</span>
The character "_" is removed from the denomination "lambda_delta":
<ul>
- <li>
+ <li class="">
The denomination "\lambda\delta" is used in λδ-related texts.
</li>
- <li>
+ <li class="">
The denomination "lambdadelta" is used in λδ-related identifiers.
</li>
- <li>
+ <li class="">
Permanent λδ URL acquired:
<a href="http://lambdadelta.info/">http://lambdadelta.info/</a>
(pointing at this site).
<span class="emph alpha">September 2011.</span>
The denomination "lambda-delta" changes to "lambda_delta":
<ul>
- <li>
+ <li class="">
The character "-" is reserved in λδ textual syntax
(recognized by "Helena 0.8.1").
</li>
- <li>
+ <li class="">
Eventually, the occurrences of the character "-"
will be replaced by "_" in all λδ-related identifiers.
</li>
- <li>
+ <li class="">
In particular, this refactoring involves file names and path names.
</li>
</ul>
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:08:41 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:34:08 +0200</div>
</body>
</html>
In order to meet these design goals, OSN pursues the following features.
</div>
<ul xmlns:ld="http://lambdadelta.info/">
- <span class="red-mark">
- <li>
- <span class="alpha">
- <a href="https://en.wikipedia.org/wiki/S-expression">Symbolic expressions</a>
+ <li class="red-mark">
+ <span class="alpha">
+ <a href="https://en.wikipedia.org/wiki/S-expression">Symbolic expressions</a>
based on widely accepted syntactical conventions
provide for a <span class="emph ">lightweight</span> and <span class="emph ">generic</span> grammar,
which is both <span class="emph ">easy for machines to process</span>,
Apparently, these features fall outside the scope of OSN,
which targets the data structures of <span class="emph ">formal languages</span>.
</span>
- </li>
- </span>
+ </li>
<br />
- <span class="blue-mark">
- <li>
- <span class="alpha">
+ <li class="blue-mark">
+ <span class="alpha">
Optionally <a href="https://en.wikipedia.org/wiki/Namespace">qualified</a> symbolic expressions
allow OSN texts to mix data from different domains preserving their own semantics
because name conflicts can be avoided.
domain-specific OSN applications can work as expected even if
data from different domains is added to the text they process.
</span>
- </li>
- </span>
+ </li>
<br />
- <span class="green-mark">
- <li>
- <span class="alpha">
+ <li class="green-mark">
+ <span class="alpha">
The <a href="https://en.wikipedia.org/wiki/ASCII">US-ASCII</a> character set,
extended to <a href="http://www.utf-8.com/">UTF-8</a> in
free-form text strings for the convenience of human readers,
makes OSN documents <span class="emph ">easy to visualize and transport</span> over communication media.
OSN design aims at supporting <span class="emph ">application-independent</span> standard encodings.
</span>
- </li>
- </span>
+ </li>
</ul>
<div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="grammar">Grammar <img class="icon37" alt="[butterfly]" title="\lambda\delta butterfly" src="http://lambdadelta.info/images/b6.png" />
</div>
and are available for extensions of OSN.
</div>
<ul xmlns:ld="http://lambdadelta.info/">
- <li>
+ <li class="">
This token can represent the identifiers and the numerical constants of most programming languages:
<br />
<span class="emph ebnf">symbol = 1 * symbol-char ; <br />symbol-char = '+' | '-' | '.' | '0' | ... | '9' | 'A' | ... | 'Z' | '_' | '`' | 'a' | ... | 'z' ; </span>
</li>
<br />
- <li>
+ <li class="">
This token contains free-form text with commonly accepted escape sequences:
<br />
<span class="emph ebnf">string = '"' , * ( string-char | "'" | '\' escape ) , '"' ; <br />string-char = ( #0 | ... | #10FFFF ) - ( #0 | ... | #1F | "'" | '\' | '"' | #7F ) ; <br />escape = 1 * space | '"' | "'" | '(' | ')' | '0' | '\' | 'a' | 'b' | 'e' | 'f' | 'n' | 'r' | 't' | ( 'u' , 4 * 4 hex ) | 'v' | ( 'x' , 2 * 2 hex ) ; <br />space = #9 | ... | #D | #20 ; <br />hex = '0' | ... | '9' | 'A' | ... | 'F' | 'a' | ... | 'f' ; </span>
</li>
<br />
- <li>
+ <li class="">
This token is a widely used alternative of the former token:
<br />
<span class="emph ebnf">string-alt = "'" , * ( string-char | '"' | '\' escape ) , "'" ; </span>
</li>
<br />
- <li>
+ <li class="">
This token separates the qualifiers of a symbolic expression:
<br />
<span class="emph ebnf">sep = ':' ; </span>
</li>
<br />
- <li>
+ <li class="">
This token starts a compound symbolic expression:
<br />
<span class="emph ebnf">open = '(' | '<' | '[' | '{' ; </span>
</li>
<br />
- <li>
+ <li class="">
This token ends a compound symbolic expression:
<br />
<span class="emph ebnf">close = ')' | '>' | ']' | '}' ; </span>
</li>
<br />
- <li>
+ <li class="">
This token is ignored and separates the other tokens:
<br />
<span class="emph ebnf">gap = space | ',' | ';' | '=' ; </span>
Spaces of the form <span class="emph ebnf">1 * gap </span> can appear between any pair of tokens.
</div>
<ul xmlns:ld="http://lambdadelta.info/">
- <li>
+ <li class="">
An OSN text:
<br />
<span class="emph ebnf">text = * q-expr ; </span>
</li>
<br />
- <li>
+ <li class="">
A qualified symbolic expression:
<br />
<span class="emph ebnf">q-expr = * ( symbol , 1 * sep ) , expr ; </span>
</li>
<br />
- <li>
+ <li class="">
An unqualified symbolic expression:
<br />
<span class="emph ebnf">expr = symbol | string | string-alt | ( open , text , close ) ; </span>
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:08:41 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:37:02 +0200</div>
</body>
</html>
Source scripts.
<a href="http://lambdadelta.info/documentation.html#ldJ1a">Documentation (J1a)</a>.
<ul>
- <li>
+ <li class="">
<span class="emph delta">2015 January 15.</span>
17 new lemmas and former lemma "eq_nat_dec" renamed as "nat_dec_neg".
</li>
(revised <span class="emph delta">2011-09</span>).
Static HTML pages generated by the <a href="http://helm.cs.unibo.it/">HELM</a> rendering engine.
<ul>
- <li>
+ <li class="">
<a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/pr3/pr3/pr3_confluence.con.html">
Confluence of reduction</a>
(Church-Rosser property).
</li>
- <li>
+ <li class="">
<a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/props/ty3_correct.con.html">
Correctness of types</a>.
</li>
- <li>
+ <li class="">
<a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/props/ty3_unique.con.html">
Uniqueness of types up to conversion</a>.
</li>
- <li>
+ <li class="">
<a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/pr3/ty3_sred_pr3.con.html">
Subject reduction of the type assignment</a>.
</li>
- <li>
+ <li class="">
<a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/arity_props/ty3_sn3.con.html">
Strong normalization of the typed terms</a>.
</li>
- <li>
+ <li class="">
<a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/dec/ty3_inference.con.html">
Decidability of the type inference problem</a>.
</li>
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:08:42 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 22 Jul 2016 19:34:08 +0200</div>
</body>
</html>
generic abstract syntax trees in the domain of formal languages.
In order to meet these design goals, OSN pursues the following features.
</body>
- <list><style class="red-mark"><item><style class="alpha">
+ <list><item class="red-mark"><style class="alpha">
<link to="https://en.wikipedia.org/wiki/S-expression">Symbolic expressions</link>
based on widely accepted syntactical conventions
provide for a <notice text="lightweight"/> and <notice text="generic"/> grammar,
as well as the support for canonicalization.
Apparently, these features fall outside the scope of OSN,
which targets the data structures of <notice text="formal languages"/>.
- </style></item></style>
- <newline/>
- <style class="blue-mark"><item><style class="alpha">
+ </style></item><newline/>
+ <item class="blue-mark"><style class="alpha">
Optionally <link to="https://en.wikipedia.org/wiki/Namespace">qualified</link> symbolic expressions
allow OSN texts to mix data from different domains preserving their own semantics
because name conflicts can be avoided.
As a consequence OSN documents are <notice text="easy to extend"/> in that
domain-specific OSN applications can work as expected even if
data from different domains is added to the text they process.
- </style></item></style>
- <newline/>
- <style class="green-mark"><item><style class="alpha">
+ </style></item><newline/>
+ <item class="green-mark"><style class="alpha">
The <link to="https://en.wikipedia.org/wiki/ASCII">US-ASCII</link> character set,
extended to <link to="http://www.utf-8.com/">UTF-8</link> in
free-form text strings for the convenience of human readers,
makes OSN documents <notice text="easy to visualize and transport"/> over communication media.
OSN design aims at supporting <notice text="application-independent"/> standard encodings.
- </style></item></style></list>
+ </style></item></list>
<section6 name="grammar">Grammar</section6>
</xsl:template>
<xsl:template match="ld:item">
- <li><xsl:apply-templates/></li>
+ <li class="{@class}"><xsl:apply-templates/></li>
</xsl:template>
<xsl:template match="ld:style">
projects / helm.git / commitdiff