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22 <div class="head1">The Formal System λδ (\lambda\delta)</div>
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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 component green">(<a href="http://lambdadelta.info/implementation.html#specifications">specifications</a>
46 <a href="http://lambdadelta.info/implementation.html#lddl">library</a>
47 <a href="http://lambdadelta.info/implementation.html#helena">Helena</a>)</td>
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57 <a href="http://lambdadelta.info/documentation.html#v2">Version 2</a>
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76 <a href="http://lambdadelta.info/documentation.html#v1">Version 1</a>
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92 The formal system λδ (\lambda\delta) is a typed λ-calculus aiming to support
93 the foundations of Mathematics that require an underlying specification language
94 (for example the <a href="http://www.math.unipd.it/~maietti/">Minimal Type Theory</a>
95 and its predecessors).
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98 λδ is developed in the context of the
99 <a href="http://helm.cs.unibo.it/">Hypertextual Electronic Library of Mathematics</a>
100 as a machine-checked digital specification
101 that is not the formal counterpart of some previously published informal material.
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105 (revised <span class="date">2012-09</span>).
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144 <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Sun, 20 Jul 2014 15:02:32 +0200</div>