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22 <div class="head1">The Formal System λδ (\lambda\delta)</div>
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34 <a href="http://lambdadelta.info/index.html">home</a>
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37 <a href="http://lambdadelta.info/news.html">news</a>
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40 <a href="http://lambdadelta.info/documentation.html">documentation</a>
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43 <a href="http://lambdadelta.info/implementation.html">implementation</a>
45 <td class="ssnn capitalize italic green">(<a href="http://lambdadelta.info/implementation.html#specifications">specifications</a> - <a href="http://lambdadelta.info/implementation.html#lddl">library</a> - <a href="http://lambdadelta.info/implementation.html#helena">Helena</a>)</td>
49 <a href="http://lambdadelta.info/index.html#foreword">Foreword</a>
51 <td class="snns magenta">
52 <a href="http://lambdadelta.info/news.html#milestones">Milestones</a>
54 <td class="snns orange">
55 <a href="http://lambdadelta.info/documentation.html#v2">Version 2</a>
57 <td class="snns green">
58 <a href="http://lambdadelta.info/version_2.html">Version 2</a>
60 <td class="ssnn 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>
64 <a href="http://lambdadelta.info/index.html#notice">Notice</a>
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67 <a href="http://lambdadelta.info/news.html#visibility">Visibility</a>
69 <td class="snss orange">
70 <a href="http://lambdadelta.info/documentation.html#v1">Version 1</a>
72 <td class="snss green">
73 <a href="http://lambdadelta.info/version_1.html">Version 1</a>
75 <td class="sssn green">
83 <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="bibtex">Documentation <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b4.png" />
85 <div xmlns:ld="http://lambdadelta.info/" class="text">
86 BibTeX database of λδ documentation:
87 <a href="http://lambdadelta.info/download/lambdadelta.bib">lambdadelta.bib</a>,
88 <a href="http://lambdadelta.info/download/lambdadelta.txt">lambdadelta.txt</a>
89 (revised <span class="date">2014-07</span>).
92 <div xmlns:ld="http://lambdadelta.info/" class="head2sn" id="v2">
93 <img class="icon32" alt="[basic lambdadelta logo]" title="basic lambdadelta" src="http://lambdadelta.info/images/basic_32.png" /> λδ version 2 (in progress)</div>
94 <div xmlns:ld="http://lambdadelta.info/" class="text">
95 The main source of information is <span class="date">P8</span>.
97 <div xmlns:ld="http://lambdadelta.info/" class="text">
98 <table cellpadding="4" cellspacing="0">
101 <td class="snns top" id="ldR5">
102 <span class="date">R5.</span>
104 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/download/cie_2010.pdf">An Efficient Validation Procedure for the Formal System λδ</a> (<span class="date">2010-07</span>). In CiE 2010 Local Proceedings. University of Azores, CMATI Booklet, pp. 204-213. <a href="http://lambdadelta.info/documentation.html#bibtex">BibTeX entry</a>.</td>
107 <td class="nnns top" />
108 <td class="nsnn top">
113 <td class="snns top" id="ldR4">
114 <span class="date">R4.</span>
116 <td class="ssnn top">F. Guidi: <a href="http://www.informatica.unibo.it/it/ricerca/technical-report/2009/UBLCS-2009-16">Landau's "Grundlagen der Analysis" from Automath to lambda-delta</a> (<span class="date">2009-09</span>). University of Bologna, technical report UBLCS-2009-16. <a href="http://lambdadelta.info/documentation.html#bibtex">BibTeX entry</a>.</td>
119 <td class="nnns top" />
120 <td class="nsnn top">
125 <td class="snns top" id="ldP8">
126 <span class="date">P8.</span>
128 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/download/ld_talk_8s.pdf">The Formal System λδ and the "Three Problems"</a> (<span class="date">2014-06</span>). Presentation at University of Bologna (slides).</td>
131 <td class="nnns top" />
132 <td class="nsnn top">
137 <td class="snns top" id="ldP7">
138 <span class="date">P7.</span>
140 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/download/ld_talk_7s.pdf">An Efficient Validation Procedure for the Formal System λδ</a> (<span class="date">2010-07</span>). Presentation at CiE 2010 (slides).</td>
143 <td class="nnns top" />
144 <td class="nsnn top">
149 <td class="snns top" id="ldP6">
150 <span class="date">P6.</span>
152 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/download/ld_talk_6s.pdf">A Validator for the Formal System λδ</a> (revised <span class="date">2010-02</span>). Presentation at University of Bologna (slides).</td>
155 <td class="nnns top" />
156 <td class="nsnn top">
161 <td class="snns top" id="ldV2">
162 <span class="date">V2.</span>
164 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/version_2.html">lambdadelta_2</a> (revised <span class="date">2014-09</span>). Formal specification for the proof assistant Matita 0.99.2 (scripts). <a href="http://lambdadelta.info/documentation.html#bibtex">BibTeX entry</a>.</td>
167 <td class="nnss top" />
168 <td class="nssn top">
176 <div xmlns:ld="http://lambdadelta.info/" class="head2sn" id="v1">
177 <img class="icon32" alt="[basic lambdadelta logo]" title="basic lambdadelta" src="http://lambdadelta.info/images/basic_32.png" /> λδ version 1 (dismissed)</div>
178 <div xmlns:ld="http://lambdadelta.info/" class="text">
179 The main source of information is <span class="date">J1</span>.
180 A summary is available in <span class="date">P5</span>.
182 <div xmlns:ld="http://lambdadelta.info/" class="text">
183 <table cellpadding="4" cellspacing="0">
186 <td class="snns top" id="ldJ1">
187 <span class="date">J1.</span>
189 <td class="ssnn top">F. Guidi: <a href="http://doi.acm.org/10.1145/1614431.1614436">The Formal System λδ</a> (<span class="date">2009-11</span>). In In ACM ToCL 11(1), pp. 5:1-5:37 ( <a href="http://tocl.acm.org/accepted/335guidi.pdf">accepted</a>
190 <span class="date">2008-07</span>). CoRR identifier <a href="http://arxiv.org/abs/cs/0611040">cs/0611040</a> [v10] (revised <span class="date">2008-09</span>). <a href="http://lambdadelta.info/documentation.html#bibtex">BibTeX entry</a>.</td>
193 <td class="nnns top" />
194 <td class="nsnn top">
199 <td class="snns top" id="ldR3">
200 <span class="date">R3.</span>
202 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/download/cie_2007.pdf">Lambda Types on the Lambda Calculus with Abbreviations</a> (<span class="date">2007-06</span>). In CiE 2007 Local Proceedings. University of Siena, technical report 487, p. 387 (abstract of a presentation). <a href="http://lambdadelta.info/documentation.html#bibtex">BibTeX entry</a>.</td>
205 <td class="nnns top" />
206 <td class="nsnn top">
211 <td class="snns top" id="ldR2">
212 <span class="date">R2.</span>
214 <td class="ssnn top">F. Guidi: <a href="http://www.informatica.unibo.it/it/ricerca/technical-report/2006/UBLCS-2006-25">Lambda Types on the Lambda Calculus with Abbreviations</a> (<span class="date">2006-11</span>). University of Bologna, technical report UBLCS-2006-25. <a href="http://lambdadelta.info/documentation.html#bibtex">BibTeX entry</a>.</td>
217 <td class="nnns top" />
218 <td class="nsnn top">
223 <td class="snns top" id="ldR1">
224 <span class="date">R1.</span>
226 <td class="ssnn top">F. Guidi: <a href="http://www.informatica.unibo.it/it/ricerca/technical-report/2006/UBLCS-2006-01">Lambda Types on the Lambda Calculus with Abbreviations: a Certified Specification</a> (<span class="date">2006-01</span>). University of Bologna, technical report UBLCS-2006-01. <a href="http://lambdadelta.info/documentation.html#bibtex">BibTeX entry</a>.</td>
229 <td class="nnns top" />
230 <td class="nsnn top">
235 <td class="snns top" id="ldP5">
236 <span class="date">P5.</span>
238 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/download/ld_talk_5s.pdf">The Formal System λδ</a> (<span class="date">2008-10</span>). Presentation at Advances in Constructive Topology and Logical Foundations (slides).</td>
241 <td class="nnns top" />
242 <td class="nsnn top">
247 <td class="snns top" id="ldP4">
248 <span class="date">P4.</span>
250 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/download/ld_talk_4s.pdf">Towards the Unification of Terms, Types and Contexts</a> (<span class="date">2008-03</span>). Presentation at Types 2008 (slides).</td>
253 <td class="nnns top" />
254 <td class="nsnn top">
259 <td class="snns top" id="ldP3">
260 <span class="date">P3.</span>
262 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/download/ld_talk_3s.pdf">Lambda Types on the Lambda Calculus with Abbreviations</a> (<span class="date">2007-06</span>). Presentation at CiE 2007 (slides).</td>
265 <td class="nnns top" />
266 <td class="nsnn top">
271 <td class="snns top" id="ldP2">
272 <span class="date">P2.</span>
274 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/download/ld_talk_2s.pdf">Lambda Tipi sul Lambda Calcolo con Abbreviazioni</a> (<span class="date">2007-01</span>). Presentation at University of Padova (slides <span class="date">in Italian</span>).</td>
277 <td class="nnns top" />
278 <td class="nsnn top">
283 <td class="snns top" id="ldP1">
284 <span class="date">P1.</span>
286 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/download/ld_talk_1s.pdf">Lambda Tipi sul Lambda Calcolo con Abbreviazioni: una Specifica Certificata</a> (<span class="date">2005-12</span>). Presentation at University of Bologna (slides <span class="date">in Italian</span>).</td>
289 <td class="nnns top" />
290 <td class="nsnn top">
295 <td class="snns top" id="ldV1">
296 <span class="date">V1.</span>
298 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/version_1.html">lambdadelta_1</a> (revised <span class="date">2012-10</span>). Formal specification for the proof assistant Coq 7.3.1 (scripts). <a href="http://lambdadelta.info/documentation.html#bibtex">BibTeX entry</a>.</td>
301 <td class="nnss top" />
302 <td class="nssn top">
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