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5   <title>lambda_delta home page</title>
6   <meta content="Ferruccio Guidi" name="author">
7   <meta content="The formal system lambda_delta" name="description">
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11 <div style="text-align: center;">
12 <br>
13 <a href="http://lambda-delta.info"><img alt="[Crux Logo]"
14  title="The Crux" src="download/crux_32.png"
15  style="border: 0px solid ; width: 32px; height: 32px;"></a>
16 <h1>The Formal System λδ (lambda_delta)<br>
17 </h1>
18 <h2>Towards the unification of terms, types, environments and contexts</h2>
19 <img style="width: 95%; height: 4px;" alt="[Separator]"
20  title="Separator" src="download/rainbow.png"><br>
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24   <tbody>
25     <tr>
26       <td style="vertical-align: top;">
27       <ul>
28         <li><a href="index.html">Foreword</a></li>
29       </ul>
30       <ul>
31         <li><a href="news.html">News</a></li>
32       </ul>
33       <ul>
34         <li>Papers</li>
35       </ul>
36       <ul>
37         <li><a href="implementation.html">Resources</a><br>
38         </li>
39       </ul>
40       </td>
41       <td style="vertical-align: top; text-align: left;">
42       <h3 style="text-align: right;">Documentation <img
43  style="width: 37px; height: 37px;" alt="[Butterfly]" title="Butterfly"
44  src="download/b5.png"></h3>
45 Currently the <span style="font-weight: bold;">main source of
46 information</span> on λδ (version 1) is <span
47  style="font-weight: bold;">Resource
48 1.1</span> below.<br>
49 A <span style="font-weight: bold;">summary</span> of basic λδ (version
50 1) is found in <span style="font-weight: bold;">Resource 1.5</span>
51 below.<br>
52       <h3><img style="width: 32px; height: 32px;"
53  alt="[Basic lambda_delta Logo]" title="Basic lambda_delta"
54  src="download/basic_32.png"> Basic λδ version 2:</h3>
55       <table style="text-align: left; width: 100%;" border="0"
56  cellpadding="2" cellspacing="2">
57         <tbody>
58           <tr>
59             <td style="vertical-align: top;">2.1.<br>
60             </td>
61             <td style="vertical-align: top;">F. Guidi: <a
62  href="download/cie_2010.pdf"><span style="font-style: italic;">An
63 Efficient
64 Validation Procedure for the Formal System </span><span
65  style="font-style: italic;">λδ</span></a><span
66  style="font-style: italic;"></span>
67 (<span style="font-weight: bold;">2010-07</span>). In <span
68  style="font-style: italic;">CiE 2010 Local Proceedings</span>.
69 University of Azores, CMATI Booklet, pp. 204-213. <a
70  href="implementation.html#bibtex">BibTeX entry</a>.<br>
71             <br>
72             </td>
73           </tr>
74           <tr>
75             <td style="vertical-align: top;">2.2.<br>
76             </td>
77             <td style="vertical-align: top;"> <a name="ublcs-2009-16"></a>F.
78 Guidi:
79
80
81
82
83
84
85
86
87             <a
88  href="http://www.cs.unibo.it/pub/TR/UBLCS/ABSTRACTS/2009.bib?ncstrl.cabernet//BOLOGNA-UBLCS-2009-16"><span
89  style="font-style: italic;">Landau's
90 "Grundlagen der Analysis" from Automath to lambda_delta</span></a> (<span
91  style="font-weight: bold;">2009-09)</span>. University of
92 Bologna, technical report UBLCS-2009-16. <a
93  href="implementation.html#bibtex">BibTeX entry</a>.<br>
94             <br>
95             </td>
96           </tr>
97           <tr>
98             <td style="vertical-align: top;">2.3.<br>
99             </td>
100             <td style="vertical-align: top;">F. Guidi: <a
101  href="download/ld_talk_7s.pdf"><span style="font-style: italic;">An
102 Efficient
103 Validation Procedure for the Formal System λδ</span></a> (<span
104  style="font-weight: bold;">2010-07</span>). Presentation
105 at
106 CiE
107 2010
108 (slides).<br>
109             <br>
110             </td>
111           </tr>
112           <tr>
113             <td style="vertical-align: top;">2.4.<br>
114             </td>
115             <td style="vertical-align: top;">F. Guidi: <a
116  href="download/ld_talk_6s.pdf"><span style="font-style: italic;">A
117 Validator
118 for the Formal System λδ</span></a> (revised <span
119  style="font-weight: bold;">2010-02</span>). Presentation
120 at
121 the
122 University
123 of
124 Bologna
125 (slides). </td>
126           </tr>
127         </tbody>
128       </table>
129       <h3><img style="width: 32px; height: 32px;"
130  alt="[Basic lambda_delta Logo]" title="Basic lambda_delta"
131  src="download/basic_32.png"> Basic λδ version 1:</h3>
132       <table style="text-align: left; width: 100%;" border="0"
133  cellpadding="2" cellspacing="2">
134         <tbody>
135           <tr>
136             <td style="vertical-align: top;">1.1.<br>
137             </td>
138             <td style="vertical-align: top;"><a name="tocl1"></a>F.
139 Guidi: <a href="http://doi.acm.org/10.1145/1614431.1614436"><span
140  style="font-style: italic;">The Formal System λδ</span></a> (<span
141  style="font-weight: bold;">2009-10</span>). In ACM ToCL 11(1), Article
142 No. 5 (<a href="http://tocl.acm.org/accepted/335guidi.pdf">accepted</a>
143             <span style="font-weight: bold;">2008-07</span>). CoRR
144 identifier <a href="http://arxiv.org/abs/cs/0611040"><span
145  style="font-style: italic;"></span>cs/0611040</a> [v10] (revised <span
146  style="font-weight: bold;">2008-09</span>). <a
147  href="implementation.html#bibtex">BibTeX
148 entry</a>.<br>
149             <br>
150             </td>
151           </tr>
152           <tr>
153             <td style="vertical-align: top;">1.2.<br>
154             </td>
155             <td style="vertical-align: top;">F. Guidi: <a
156  href="http://www.cs.unibo.it/%7Efguidi/download/cie_2007.pdf"><span
157  style="font-style: italic;">Lambda Types on the Lambda Calculus with
158 Abbreviations</span></a> (<span style="font-weight: bold;">2007-06</span>).
159 In
160
161
162
163
164
165
166
167
168
169
170
171
172             <span style="font-style: italic;">CiE 2007 Local Proceedings</span>.
173 University
174 of
175 Siena,
176 technical
177 report
178 487,
179 p.
180 387
181 (abstract
182 of
183 a
184 presentation).
185
186
187
188
189
190
191             <a href="implementation.html#bibtex">BibTeX
192 entry</a>.<br>
193             <br>
194             </td>
195           </tr>
196           <tr>
197             <td style="vertical-align: top;">1.3.<br>
198             </td>
199             <td style="vertical-align: top;">F. Guidi: <a
200  href="http://www.cs.unibo.it/pub/TR/UBLCS/ABSTRACTS/2006.bib?ncstrl.cabernet//BOLOGNA-UBLCS-2006-25"><span
201  style="font-style: italic;">Lambda Types on the Lambda Calculus with
202 Abbreviations</span></a> (<span style="font-weight: bold;">2006-11</span>).
203 University
204 of
205 Bologna,
206 technical
207 report
208 UBLCS-2006-25.
209
210
211
212
213
214
215
216
217
218
219
220
221
222             <a href="implementation.html#bibtex">BibTeX
223 entry</a>.<br>
224             <br>
225             </td>
226           </tr>
227           <tr>
228             <td style="vertical-align: top;">1.4.<br>
229             </td>
230             <td style="vertical-align: top;">F. Guidi: <a
231  style="font-style: italic;"
232  href="http://www.cs.unibo.it/pub/TR/UBLCS/ABSTRACTS/2006.bib?ncstrl.cabernet//BOLOGNA-UBLCS-2006-01">Lambda
233 Types
234 on
235 the
236 Lambda
237 Calculus
238 with
239 Abbreviations:
240 a
241 Certified
242 Specification</a> (<span style="font-weight: bold;">2006-01</span>).
243 University of
244 Bologna, technical report UBLCS-2006-01. <a
245  href="implementation.html#bibtex">BibTeX entry</a>.<br>
246             <br>
247             </td>
248           </tr>
249           <tr>
250             <td style="vertical-align: top;">1.5.<br>
251             </td>
252             <td style="vertical-align: top;">F. Guidi: <a
253  style="font-style: italic;" href="download/ld_talk_5s.pdf">The
254 Formal
255 System lambda-delta</a>
256 (<span style="font-weight: bold;">2008-10</span>). Presentation at
257 "Advances in Constructive Topology and Logical Foundations" (slides).<br>
258             <br>
259             </td>
260           </tr>
261           <tr>
262             <td style="vertical-align: top;">1.6.<br>
263             </td>
264             <td style="vertical-align: top;">F. Guidi: <a
265  href="http://www.cs.unibo.it/%7Efguidi/download/ld-talk-4.pdf"><span
266  style="font-style: italic;">Towards the Unification of Terms, Types
267 and Contexts</span></a> (<span style="font-weight: bold;">2008-03</span>).
268 Presentation
269 at
270 Types
271 2008
272 (slides).<br>
273             <br>
274             </td>
275           </tr>
276           <tr>
277             <td style="vertical-align: top;">1.7.<br>
278             </td>
279             <td style="vertical-align: top;">F. Guidi: <a
280  href="http://www.cs.unibo.it/%7Efguidi/download/ld-talk-3.pdf"><span
281  style="font-style: italic;">Lambda Types on the Lambda Calculus with
282 Abbreviations</span></a> (<span style="font-weight: bold;">2007-06</span>).
283 Presentation
284 at
285 CiE
286 2007
287 (slides).<br>
288             <br>
289             </td>
290           </tr>
291           <tr>
292             <td style="vertical-align: top;">1.8.<br>
293             </td>
294             <td style="vertical-align: top;">F. Guidi: <a
295  href="http://www.cs.unibo.it/%7Efguidi/download/ld-talk-2.pdf"><span
296  style="font-style: italic;">Lambda Tipi sul Lambda Calcolo con
297 Abbreviazioni</span></a> (<span style="font-weight: bold;">2007-01</span>).
298 Presentation
299 at
300 the
301 University
302 of
303 Padova
304 (slides
305
306
307
308
309
310
311             <span style="font-weight: bold;">in
312 Italian</span>).<br>
313             <br>
314             </td>
315           </tr>
316           <tr>
317             <td style="vertical-align: top;">1.9.<br>
318             </td>
319             <td style="vertical-align: top;"><a name="bologna1"></a>F.
320 Guidi: <a
321  href="http://www.cs.unibo.it/%7Efguidi/download/ld-talk-1.pdf"><span
322  style="font-style: italic;">Lambda Tipi sul Lambda Calcolo con
323 Abbreviazioni: una Specifica Certificata</span></a> (<span
324  style="font-weight: bold;">2005-12</span>). Presentation at
325 the University of Bologna (slides <span style="font-weight: bold;">in
326 Italian</span>).<br>
327             </td>
328           </tr>
329         </tbody>
330       </table>
331       </td>
332     </tr>
333   </tbody>
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