+ </li>
+ </ul>
+ <!-- ===================================================================== -->
+ <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="disclaimer">Disclaimer <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b9.png" />
+ </div>
+ <div xmlns:ld="http://lambdadelta.info/" class="text">
+ The systens of the λδ family <span xmlns="http://lambdadelta.info/" class="emph">are not</span> related intentionally to any other system
+ having (variations of) the symbols λ and δ in its name or syntax.
+ Examples include (but are not limited to):
+ </div>
+ <ul xmlns:ld="http://lambdadelta.info/" id="D1">
+ <li>
+ <span xmlns="http://lambdadelta.info/" class="emph">λ-δ</span> of
+ A. Church:
+ <span xmlns="http://lambdadelta.info/" class="emph">The calculi of lambda-conversion</span>
+ (1941).
+ Annals of Mathematics Studies 6.
+ Princeton University Press.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/" id="D2">
+ <li>
+ <span xmlns="http://lambdadelta.info/" class="emph">∆Λ</span> of
+ N.G. de Bruijn:
+ <span xmlns="http://lambdadelta.info/" class="emph">Generalizing Automath by means of a lambda-typed lambda calculus</span>
+ (1987).
+ In Lecture Notes in Pure and Applied Mathematics 106, pp. 71-92.
+ Marcel Dekker.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/" id="D3">
+ <li>
+ <span xmlns="http://lambdadelta.info/" class="emph">λ<sub>∆</sub>
+ </span> of
+ N.J. Rehof, M.H. Sørensen:
+ <span xmlns="http://lambdadelta.info/" class="emph">The λ<sub>∆</sub>-calculus</span>
+ (1994).
+ In Lecture Notes in Computer Science, 789, pp. 516–542.
+ Springer.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/" id="D4">
+ <li>
+ <span xmlns="http://lambdadelta.info/" class="emph alpha">λ∆</span> of
+ S. Ronchi Della Rocca, L. Paolini:
+ <span xmlns="http://lambdadelta.info/" class="emph">The Parametric Lambda Calculus</span>
+ (2004).
+ Texts in Theoretical Computer Science, An EATCS Series.
+ Springer.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/" id="D5">
+ <li>
+ <span xmlns="http://lambdadelta.info/" class="emph">λD</span> of
+ R. Nederpelt, H. Geuvers:
+ <span xmlns="http://lambdadelta.info/" class="emph">Type Theory and Formal Proof</span>
+ (2014).
+ Cambridge University Press.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/" id="D6">
+ <li>
+ <span xmlns="http://lambdadelta.info/" class="emph">Cλξ</span> of
+ N.G. de Bruijn:
+ <span xmlns="http://lambdadelta.info/" class="emph">A namefree lambda calculus with facilities for internal definition of expressions and segments</span>
+ (1978).
+ TH-report 78-WSK-03.
+ Eindhoven University of Technology, Eindhoven.