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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="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>
56 <td class="snns capitalize magenta">
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>
71 <td class="snss capitalize sky">
72 <a href="http://lambdadelta.info/index.html#citations">citations</a>
74 <td class="snss capitalize magenta">
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="summary">Summary of the Specification <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b4.png" />
96 <div xmlns:ld="http://lambdadelta.info/" class="text">Here is a numerical acount of the specification's contents
99 <div xmlns:ld="http://lambdadelta.info/" class="text">
100 <table cellpadding="4" cellspacing="0">
103 <td class="snns capitalize italic gray">category</td>
104 <td class="snns italic gray">objects</td>
105 <td class="snnn right italic gray">
108 <td class="snnn italic gray">
111 <td class="snnn right italic gray">
114 <td class="snnn italic gray">
117 <td class="ssnn right italic gray">
122 <td class="snns capitalize italic cyan">sizes</td>
123 <td class="snns italic cyan">files</td>
124 <td class="snnn right italic cyan">30</td>
125 <td class="snns italic cyan">characters</td>
126 <td class="snnn right italic cyan">46649</td>
127 <td class="snns italic cyan">nodes</td>
128 <td class="ssnn right italic cyan">62380</td>
131 <td class="snns capitalize italic green">propositions</td>
132 <td class="snns italic green">theorems</td>
133 <td class="snnn right italic green">2</td>
134 <td class="snns italic green">lemmas</td>
135 <td class="snnn right italic green">187</td>
136 <td class="snns italic green">total</td>
137 <td class="ssnn right italic green">189</td>
140 <td class="snss capitalize italic yellow">concepts</td>
141 <td class="snss italic yellow">declared</td>
142 <td class="snsn right italic yellow">40</td>
143 <td class="snss italic yellow">defined</td>
144 <td class="snsn right italic yellow">25</td>
145 <td class="snss italic yellow">total</td>
146 <td class="sssn right italic yellow">65</td>
151 <ul xmlns:ld="http://lambdadelta.info/">
153 <span class="emph alpha">2013 November 27.</span>
154 Natural numbers with infinity.
157 <ul xmlns:ld="http://lambdadelta.info/">
159 <span class="emph alpha">2011 August 10.</span>
160 Specification starts.
164 <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" />
166 <div xmlns:ld="http://lambdadelta.info/" class="text">This table reports the specification's components and their planes.
168 <div xmlns:ld="http://lambdadelta.info/" class="text">
169 <table cellpadding="4" cellspacing="0">
172 <td class="snns top capitalize italic gray">component</td>
173 <td class="snns top italic gray">plane</td>
174 <td class="snns top gray">files</td>
175 <td class="snnn top gray">
178 <td class="snnn top gray">
181 <td class="snnn top gray">
184 <td class="snnn top gray">
187 <td class="snnn top gray">
190 <td class="snnn top gray">
193 <td class="snnn top gray">
196 <td class="ssnn top gray">
201 <td class="snns top capitalize italic yellow">natural numbers with infinity</td>
202 <td class="snns top italic yellow" />
203 <td class="snns top yellow">ynat ( ∞ )</td>
204 <td class="snnn top yellow">ynat_pred ( ⫰? )</td>
205 <td class="snnn top yellow">ynat_succ ( ⫯? )</td>
206 <td class="snnn top yellow">ynat_le ( ? ≤ ? )</td>
207 <td class="snnn top yellow">ynat_lt ( ? < ? )</td>
208 <td class="snnn top yellow">ynat_minus ( ? - ? )</td>
209 <td class="snnn top yellow">ynat_plus ( ? + ? )</td>
210 <td class="snnn top yellow">ynat_max</td>
211 <td class="ssnn top yellow">ynat_min</td>
214 <td class="snns top capitalize italic orange">extensions to the library</td>
215 <td class="snns top italic orange" />
216 <td class="snns top orange">star</td>
217 <td class="snnn top orange">lstar</td>
218 <td class="snnn top orange">bool ( Ⓕ ) ( Ⓣ )</td>
219 <td class="snnn top orange">arith ( ?^? )</td>
220 <td class="snnn top orange">list ( ◊ ) ( ? @ ? ) ( {?,?} @ ? ) ( ? @@ ? ) ( |?| )</td>
221 <td class="snnn top orange">
224 <td class="snnn top orange">
227 <td class="snnn top orange">
230 <td class="ssnn top orange">
235 <td class="snss top capitalize italic red">generated logical decomposables</td>
236 <td class="snss top italic red" />
237 <td class="snss top red">xoa ( ∃∃ ) ( ∨∨ ) ( ∧∧ )</td>
238 <td class="snsn top red">xoa_props ( ⊥ ) ( ⊤ )</td>
239 <td class="snsn top red">
242 <td class="snsn top red">
245 <td class="snsn top red">
248 <td class="snsn top red">
251 <td class="snsn top red">
254 <td class="snsn top red">
257 <td class="sssn top red">
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291 <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Wed, 24 Dec 2014 22:58:52 +0100</div>