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- <div class="head1">cic:/matita/lambdadelta/basic_2/ (λδ version 2)</div>
+ <div class="head1">cic:/matita/lambdadelta/basic_2/ (core λδ version 2)</div>
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+ <a href="http://lambdadelta.info/documentation.html">documentation</a>
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+ <a href="http://lambdadelta.info/specification.html">specification</a>
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+ <a href="http://lambdadelta.info/implementation.html">implementation</a>
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+ <a href="http://lambdadelta.info/index.html#foreword">foreword</a>
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+ <a href="http://lambdadelta.info/news.html#milestones">milestones</a>
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+ <td class="snns capitalize orange">
+ <a href="http://lambdadelta.info/documentation.html#v2">version 2</a>
+ </td>
+ <td class="snns capitalize green">
+ <a href="http://lambdadelta.info/specification.html#v2">version 2</a>
+ </td>
+ <td class="snnn capitalize green">(<a href="http://lambdadelta.info/ground_2.html">background</a> - <a href="http://lambdadelta.info/basic_2.html">core</a> - <a href="http://lambdadelta.info/apps_2.html">applications</a>)</td>
+ <td class="ssns capitalize green">
+ <a href="http://lambdadelta.info/implementation.html#lddl">library</a>
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+ <a href="http://lambdadelta.info/index.html#citations">citations</a>
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+ <a href="http://lambdadelta.info/news.html#visibility">visibility</a>
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+ <td class="snss capitalize orange">
+ <a href="http://lambdadelta.info/documentation.html#v1">version 1</a>
+ </td>
+ <td class="snss capitalize green">
+ <a href="http://lambdadelta.info/specification.html#v1">version 1</a>
+ </td>
+ <td class="snsn capitalize green">
+ <br />
+ </td>
+ <td class="ssss capitalize green">
+ <a href="http://lambdadelta.info/implementation.html#helena">helena</a>
+ </td>
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+ </table>
+ </div>
- <div xmlns:ld="http://lambdadelta.info/" class="head2sn" id="">Summary of the Specification</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="summary">Summary of the Specification <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b4.png" />
+ </div>
<div xmlns:ld="http://lambdadelta.info/" class="text">Here is a numerical acount of the specification's contents
and its timeline.
- Nodes are counted according to the "intrinsinc complexity measure"
- [F. Guidi: "Procedural Representation of CIC Proof Terms"
- Journal of Automated Reasoning 44(1-2), Springer (February 2010),
- pp. 53-78].
</div>
<div xmlns:ld="http://lambdadelta.info/" class="text">
<table cellpadding="4" cellspacing="0">
<td class="snns italic cyan">files</td>
<td class="snnn right italic cyan">360</td>
<td class="snns italic cyan">characters</td>
- <td class="snnn right italic cyan">432823</td>
+ <td class="snnn right italic cyan">433402</td>
<td class="snns italic cyan">nodes</td>
- <td class="ssnn right italic cyan">1874185</td>
+ <td class="ssnn right italic cyan">1874774</td>
</tr>
<tr>
<td class="snns capitalize italic green">propositions</td>
<td class="snns italic green">theorems</td>
<td class="snnn right italic green">130</td>
<td class="snns italic green">lemmas</td>
- <td class="snnn right italic green">1288</td>
+ <td class="snnn right italic green">1286</td>
<td class="snns italic green">total</td>
- <td class="ssnn right italic green">1418</td>
+ <td class="ssnn right italic green">1416</td>
</tr>
<tr>
<td class="snss capitalize italic yellow">concepts</td>
</table>
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="">Stage "B"</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="B">Stage "B"</div>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">In progress.</span>
+ <span class="emph alpha">Ongoing.</span>
Context-sensitive subject equivalence
for native type assignment.
</li>
</ul>
- <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="">Stage "A": "Weakening the Applicability Condition"</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="A">Stage "A": "Extending the Applicability Condition"</div>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2014 September 9.</span>
+ <span class="emph gamma">2014 October 28.</span>
+ λδ version 2A is released.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph beta">2014 September 9.</span>
Iterated static type assignment defined (more elegantly)
as a primitive notion.
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2014 June 18.</span>
+ <span class="emph beta">2014 June 18.</span>
Preservation of stratified native validity
for context-sensitive computation on terms.
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2014 June 9.</span>
+ <span class="emph alpha">2014 June 9.</span>
Strong qrst-normalization
for simply typed terms.
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2014 April 16.</span>
+ <span class="emph alpha">2014 April 16.</span>
Lazy equivalence on local environments
addded as q-step to rst-computation on closures
(anniversary milestone).
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2014 January 20.</span>
+ <span class="emph alpha">2014 January 20.</span>
Parametrized slicing of local environments
comprises both versions of this operation
(one from basic_1, the other used in basic_2 till now).
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2013 August 7.</span>
+ <span class="emph alpha">2013 August 7.</span>
Passive support for global environments.
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2013 July 27.</span>
+ <span class="emph alpha">2013 July 27.</span>
Reaxiomatized β-reductum as in rt-reduction.
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2013 July 20.</span>
+ <span class="emph alpha">2013 July 20.</span>
Context-sensitive strong rt-normalization
for simply typed terms.
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2013 April 16.</span>
+ <span class="emph alpha">2013 April 16.</span>
Reaxiomatized substitution and reduction
commute with respect to subclosure
(anniversary milestone).
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2013 March 16.</span>
+ <span class="emph alpha">2013 March 16.</span>
Mutual recursive preservation of stratified native validity
for rst-computation on closures.
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2012 October 16.</span>
+ <span class="emph alpha">2012 October 16.</span>
Confluence for context-free parallel reduction on closures.
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2012 July 26.</span>
+ <span class="emph alpha">2012 July 26.</span>
Term binders polarized to control ζ-reduction (not released).
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2012 April 16.</span>
+ <span class="emph alpha">2012 April 16.</span>
Context-sensitive subject equivalence
for atomic arity assignment
(anniversary milestone).
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2012 March 15.</span>
+ <span class="emph alpha">2012 March 15.</span>
Context-sensitive strong normalization
for simply typed terms.
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2012 January 27.</span>
+ <span class="emph alpha">2012 January 27.</span>
Support for abstract candidates of reducibility.
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2011 September 21.</span>
+ <span class="emph alpha">2011 September 21.</span>
Confluence for context-sensitive parallel reduction on terms.
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2011 September 6.</span>
+ <span class="emph alpha">2011 September 6.</span>
Confluence for context-free parallel reduction on terms.
</li>
</ul>
<ul xmlns:ld="http://lambdadelta.info/">
<li>
- <span class="date">2011 April 17.</span>
+ <span class="emph alpha">2011 April 17.</span>
Specification starts.
</li>
</ul>
- <div xmlns:ld="http://lambdadelta.info/" class="head2sn" id="">Logical Structure of the Specification</div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">The source files are grouped in planes and components
- according to the following table.
- Notation files covering the whole specification are provided.
- The notation for the relations or functions introduced in each file
- is shown in parentheses (? are placeholders).
+ <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="structure">Logical Structure of the Specification <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b4.png" />
+ </div>
+ <div xmlns:ld="http://lambdadelta.info/" class="text">This table reports the specification's components and their planes.
</div>
<div xmlns:ld="http://lambdadelta.info/" class="text">
<table cellpadding="4" cellspacing="0">
<br />
</td>
<td class="snns top cyan">cpxs ( ⦃?,?⦄ ⊢ ? ➡*[?,?] ? )</td>
- <td class="snnn top cyan">cpxs_tsts cpxs_tsts_vector cpxs_leq cpxs_lift cpxs_lleq cpxs_aaa cpxs_cpxs</td>
+ <td class="snnn top cyan">cpxs_tsts cpxs_tsts_vector cpxs_lreq cpxs_lift cpxs_lleq cpxs_aaa cpxs_cpxs</td>
<td class="snnn top cyan">
<br />
</td>
<br />
</td>
<td class="snns top water">cpx ( ⦃?,?⦄ ⊢ ? ➡[?,?] ? )</td>
- <td class="snnn top water">cpx_leq cpx_lift cpx_llpx_sn cpx_lleq cpx_cix</td>
+ <td class="snnn top water">cpx_lreq cpx_lift cpx_llpx_sn cpx_lleq cpx_cix</td>
<td class="snnn top water">
<br />
</td>
<br />
</td>
<td class="snns top yellow">lleq ( ? ≡[?,?] ? )</td>
- <td class="snnn top yellow">lleq_alt lleq_alt_rec lleq_leq lleq_drop lleq_fqus lleq_llor lleq_lleq</td>
+ <td class="snnn top yellow">lleq_alt lleq_alt_rec lleq_lreq lleq_drop lleq_fqus lleq_llor lleq_lleq</td>
<td class="snnn top yellow">
<br />
</td>
</td>
<td class="snns top italic yellow">lazy pointwise extension of a relation</td>
<td class="snns top yellow">llpx_sn</td>
- <td class="snnn top yellow">llpx_sn_alt llpx_sn_alt_rec llpx_sn_tc llpx_sn_leq llpx_sn_drop llpx_sn_lpx_sn llpx_sn_frees llpx_sn_llor</td>
+ <td class="snnn top yellow">llpx_sn_alt llpx_sn_alt_rec llpx_sn_tc llpx_sn_lreq llpx_sn_drop llpx_sn_lpx_sn llpx_sn_frees llpx_sn_llor</td>
<td class="snnn top yellow">
<br />
</td>
</td>
<td class="snns top italic yellow">context-sensitive exclusion from free variables</td>
<td class="snns top yellow">frees ( ? ⊢ ? ϵ 𝐅*[?]⦃?⦄ )</td>
- <td class="snnn top yellow">frees_append frees_leq frees_lift</td>
+ <td class="snnn top yellow">frees_append frees_lreq frees_lift</td>
<td class="snnn top yellow">
<br />
</td>
</td>
<td class="snns top italic orange">basic local env. slicing</td>
<td class="snns top orange">drop ( ⬇[?,?,?] ? ≡ ? )</td>
- <td class="snnn top orange">drop_append drop_leq drop_drop</td>
+ <td class="snnn top orange">drop_append drop_lreq drop_drop</td>
<td class="snnn top orange">
<br />
</td>
<tr>
<td class="snns top capitalize italic red">grammar</td>
<td class="snns top italic red">equivalence for local environments</td>
- <td class="snns top red">leq ( ? ⩬[?,?] ? )</td>
- <td class="snnn top red">leq_leq</td>
+ <td class="snns top red">lreq ( ? ⩬[?,?] ? )</td>
+ <td class="snnn top red">lreq_lreq</td>
<td class="snnn top red">
<br />
</td>
</table>
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="head2sn" id="">Physical Structure of the Specification</div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">The source files are grouped in directories,
- one for each component.
- </div>
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<img class="rule" alt="[Spacer]" title="lambdadelta rainbow rule" src="http://lambdadelta.info/images/rainbow.png" />
</div>
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<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Wed, 22 Oct 2014 20:00:29 +0200</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Tue, 28 Oct 2014 17:45:56 +0100</div>
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projects / helm.git / blobdiff