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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>
42 <td class="snns capitalize italic green">
43 <a href="http://lambdadelta.info/specification.html">specification</a>
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48 <td class="ssns capitalize italic green">
49 <a href="http://lambdadelta.info/implementation.html">implementation</a>
53 <td class="snns capitalize sky">
54 <a href="http://lambdadelta.info/index.html#foreword">foreword</a>
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57 <a href="http://lambdadelta.info/news.html#milestones">milestones</a>
59 <td class="snns capitalize orange">
60 <a href="http://lambdadelta.info/documentation.html#v2">version 2</a>
62 <td class="snns capitalize green">
63 <a href="http://lambdadelta.info/specification.html#v2">version 2</a>
65 <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>
66 <td class="ssns capitalize green">
67 <a href="http://lambdadelta.info/implementation.html#lddl">library</a>
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72 <a href="http://lambdadelta.info/index.html#notice">notice</a>
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75 <a href="http://lambdadelta.info/news.html#visibility">visibility</a>
77 <td class="snss capitalize orange">
78 <a href="http://lambdadelta.info/documentation.html#v1">version 1</a>
80 <td class="snss capitalize green">
81 <a href="http://lambdadelta.info/specification.html#v1">version 1</a>
83 <td class="snsn capitalize green">
86 <td class="ssss capitalize green">
87 <a href="http://lambdadelta.info/implementation.html#helena">helena</a>
94 <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" />
96 <div xmlns:ld="http://lambdadelta.info/" class="text">
97 BibTeX database of λδ documentation:
98 <a href="http://lambdadelta.info/download/lambdadelta.bib">lambdadelta.bib</a>,
99 <a href="http://lambdadelta.info/download/lambdadelta.txt">lambdadelta.txt</a>
100 (revised <span class="date">2014-10</span>).
103 <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="v2">
104 <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b4.png" /> λδ version 2 (in progress)</div>
105 <div xmlns:ld="http://lambdadelta.info/" class="text">
106 The main source of information is <span class="date">P8</span>.
108 <div xmlns:ld="http://lambdadelta.info/" class="text">
109 <table cellpadding="4" cellspacing="0">
112 <td class="snns top" id="ldR5">
113 <span class="date">R5.</span>
115 <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>
118 <td class="nnns top" />
119 <td class="nsnn top">
124 <td class="snns top" id="ldR4">
125 <span class="date">R4.</span>
127 <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>
130 <td class="nnns top" />
131 <td class="nsnn top">
136 <td class="snns top" id="ldP8">
137 <span class="date">P8.</span>
139 <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>
142 <td class="nnns top" />
143 <td class="nsnn top">
148 <td class="snns top" id="ldP7">
149 <span class="date">P7.</span>
151 <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>
154 <td class="nnns top" />
155 <td class="nsnn top">
160 <td class="snns top" id="ldP6">
161 <span class="date">P6.</span>
163 <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>
166 <td class="nnns top" />
167 <td class="nsnn top">
172 <td class="snns top" id="ldV2">
173 <span class="date">V2.</span>
175 <td class="ssnn top">F. Guidi: <a href="http://lambdadelta.info/version_2.html">lambdadelta_2</a> (revised <span class="date">2014-10</span>). Formal specification for the proof assistant Matita 0.99.2 (scripts). <a href="http://lambdadelta.info/documentation.html#bibtex">BibTeX entry</a>.</td>
178 <td class="nnss top" />
179 <td class="nssn top">
187 <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="v1">
188 <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b6.png" /> λδ version 1 (dismissed)</div>
189 <div xmlns:ld="http://lambdadelta.info/" class="text">
190 The main source of information is <span class="date">J1</span>.
191 A summary is available in <span class="date">P5</span>.
193 <div xmlns:ld="http://lambdadelta.info/" class="text">
194 <table cellpadding="4" cellspacing="0">
197 <td class="snns top" id="ldJ1">
198 <span class="date">J1.</span>
200 <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>
201 <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>
204 <td class="nnns top" />
205 <td class="nsnn top">
210 <td class="snns top" id="ldR3">
211 <span class="date">R3.</span>
213 <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>
216 <td class="nnns top" />
217 <td class="nsnn top">
222 <td class="snns top" id="ldR2">
223 <span class="date">R2.</span>
225 <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>
228 <td class="nnns top" />
229 <td class="nsnn top">
234 <td class="snns top" id="ldR1">
235 <span class="date">R1.</span>
237 <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>
240 <td class="nnns top" />
241 <td class="nsnn top">
246 <td class="snns top" id="ldP5">
247 <span class="date">P5.</span>
249 <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>
252 <td class="nnns top" />
253 <td class="nsnn top">
258 <td class="snns top" id="ldP4">
259 <span class="date">P4.</span>
261 <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>
264 <td class="nnns top" />
265 <td class="nsnn top">
270 <td class="snns top" id="ldP3">
271 <span class="date">P3.</span>
273 <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>
276 <td class="nnns top" />
277 <td class="nsnn top">
282 <td class="snns top" id="ldP2">
283 <span class="date">P2.</span>
285 <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>
288 <td class="nnns top" />
289 <td class="nsnn top">
294 <td class="snns top" id="ldP1">
295 <span class="date">P1.</span>
297 <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>
300 <td class="nnns top" />
301 <td class="nsnn top">
306 <td class="snns top" id="ldV1">
307 <span class="date">V1.</span>
309 <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>
312 <td class="nnss top" />
313 <td class="nssn top">
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