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8 <meta name="author" content="Ferruccio Guidi" />
9 <meta name="description" content="\lambda\delta home page" />
10 <title>\lambda\delta home page</title>
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22 <div class="head1">cic:/matita/lambdadelta/ground_2/ (background for λδ version 2)</div>
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29 <div xmlns:ld="http://lambdadelta.info/" class="text">
30 <table cellpadding="4" cellspacing="0">
33 <td class="snns capitalize italic sky">
34 <a href="http://lambdadelta.info/index.html">home</a>
36 <td class="snns capitalize italic magenta">
37 <a href="http://lambdadelta.info/news.html">news</a>
39 <td class="snns capitalize italic orange">
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>
45 <td class="snnn capitalize italic green">
48 <td class="snnn capitalize italic green">
51 <td class="snns capitalize italic green">
52 <a href="http://lambdadelta.info/implementation.html">implementation</a>
54 <td class="ssnn capitalize italic green">
59 <td class="snns capitalize sky">
60 <a href="http://lambdadelta.info/index.html#foreword">foreword</a>
62 <td class="snns capitalize magenta">
63 <a href="http://lambdadelta.info/news.html#milestones">milestones</a>
65 <td class="snns capitalize orange">
66 <a href="http://lambdadelta.info/documentation.html#v2">version 2</a>
68 <td class="snns capitalize green">
69 <a href="http://lambdadelta.info/specification.html#v2">version 2</a>
71 <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>
72 <td class="snnn capitalize green">
75 <td class="snns capitalize green">
76 <a href="http://lambdadelta.info/implementation.html#lddl">library</a>
78 <td class="ssnn capitalize green">(<a href="http://lambdadelta.info/static/lddl/">static LDDL directory</a>)</td>
81 <td class="snss capitalize sky">
82 <a href="http://lambdadelta.info/index.html#citations">citations</a>
84 <td class="snss capitalize magenta">
85 <a href="http://lambdadelta.info/news.html#visibility">visibility</a>
87 <td class="snss capitalize orange">
88 <a href="http://lambdadelta.info/documentation.html#v1">version 1</a>
90 <td class="snss capitalize green">
91 <a href="http://lambdadelta.info/specification.html#v1">version 1</a>
93 <td class="snsn capitalize green">(<a href="http://lambdadelta.info/basic_1.html">core</a>)</td>
94 <td class="snsn capitalize green">(<a href="http://lambdadelta.info/static/matita/lambdadelta/">static HELM directory</a>)</td>
95 <td class="snss capitalize green">
96 <a href="http://lambdadelta.info/implementation.html#helena">helena</a>
98 <td class="sssn capitalize green">
105 <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" />
107 <div xmlns:ld="http://lambdadelta.info/" class="text">Here is a numerical acount of the specification's contents
110 <div xmlns:ld="http://lambdadelta.info/" class="text">
111 <table cellpadding="4" cellspacing="0">
114 <td class="snns capitalize italic gray">category</td>
115 <td class="snns italic gray">objects</td>
116 <td class="snnn right italic gray">
119 <td class="snnn italic gray">
122 <td class="snnn right italic gray">
125 <td class="snnn italic gray">
128 <td class="ssnn right italic gray">
133 <td class="snns capitalize italic cyan">sizes</td>
134 <td class="snns italic cyan">files</td>
135 <td class="snnn right italic cyan">30</td>
136 <td class="snns italic cyan">characters</td>
137 <td class="snnn right italic cyan">68581</td>
138 <td class="snns italic cyan">nodes</td>
139 <td class="ssnn right italic cyan">62380</td>
142 <td class="snns capitalize italic green">propositions</td>
143 <td class="snns italic green">theorems</td>
144 <td class="snnn right italic green">2</td>
145 <td class="snns italic green">lemmas</td>
146 <td class="snnn right italic green">187</td>
147 <td class="snns italic green">total</td>
148 <td class="ssnn right italic green">189</td>
151 <td class="snss capitalize italic yellow">concepts</td>
152 <td class="snss italic yellow">declared</td>
153 <td class="snsn right italic yellow">40</td>
154 <td class="snss italic yellow">defined</td>
155 <td class="snsn right italic yellow">25</td>
156 <td class="snss italic yellow">total</td>
157 <td class="sssn right italic yellow">65</td>
162 <ul xmlns:ld="http://lambdadelta.info/">
164 <span class="emph alpha">2013 November 27.</span>
165 Natural numbers with infinity.
168 <ul xmlns:ld="http://lambdadelta.info/">
170 <span class="emph alpha">2011 August 10.</span>
171 Specification starts.
174 <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" />
176 <div xmlns:ld="http://lambdadelta.info/" class="text">This table reports the specification's components and their planes.
178 <div xmlns:ld="http://lambdadelta.info/" class="text">
179 <table cellpadding="4" cellspacing="0">
182 <td class="snns top capitalize italic gray">component</td>
183 <td class="snns top italic gray">plane</td>
184 <td class="snns top gray">files</td>
185 <td class="snnn top gray">
188 <td class="snnn top gray">
191 <td class="snnn top gray">
194 <td class="snnn top gray">
197 <td class="snnn top gray">
200 <td class="snnn top gray">
203 <td class="snnn top gray">
206 <td class="ssnn top gray">
211 <td class="snns top capitalize italic yellow">natural numbers with infinity</td>
212 <td class="snns top italic yellow" />
213 <td class="snns top yellow">ynat ( ∞ )</td>
214 <td class="snnn top yellow">ynat_pred ( ⫰? )</td>
215 <td class="snnn top yellow">ynat_succ ( ⫯? )</td>
216 <td class="snnn top yellow">ynat_le ( ? ≤ ? )</td>
217 <td class="snnn top yellow">ynat_lt ( ? < ? )</td>
218 <td class="snnn top yellow">ynat_minus ( ? - ? )</td>
219 <td class="snnn top yellow">ynat_plus ( ? + ? )</td>
220 <td class="snnn top yellow">ynat_max</td>
221 <td class="ssnn top yellow">ynat_min</td>
224 <td class="snns top capitalize italic orange">extensions to the library</td>
225 <td class="snns top italic orange" />
226 <td class="snns top orange">star</td>
227 <td class="snnn top orange">lstar</td>
228 <td class="snnn top orange">bool ( Ⓕ ) ( Ⓣ )</td>
229 <td class="snnn top orange">arith ( ?^? )</td>
230 <td class="snnn top orange">list ( ◊ ) ( ? @ ? ) ( {?,?} @ ? ) ( ? @@ ? ) ( |?| )</td>
231 <td class="snnn top orange">
234 <td class="snnn top orange">
237 <td class="snnn top orange">
240 <td class="ssnn top orange">
245 <td class="snss top capitalize italic red">generated logical decomposables</td>
246 <td class="snss top italic red" />
247 <td class="snss top red">xoa ( ∃∃ ) ( ∨∨ ) ( ∧∧ )</td>
248 <td class="snsn top red">xoa_props ( ⊥ ) ( ⊤ )</td>
249 <td class="snsn top red">
252 <td class="snsn top red">
255 <td class="snsn top red">
258 <td class="snsn top red">
261 <td class="snsn top red">
264 <td class="snsn top red">
267 <td class="sssn top red">
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300 <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Tue, 20 Jan 2015 18:39:00 +0100</div>