+ <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="A2">Stage "A2": "Extending the Applicability Condition"</div>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph alpha">2017 January 17.</span>
+ Confluence for parallel r-transition on referred entries of local environments.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph alpha">2016 September 15.</span>
+ Confluence for context-sensitive parallel r-transition on terms.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph alpha">2016 April 16.</span>
+ Grammatical component reconstructed:
+ grammar, relocation, s_transition, s_computation, static
+ (anniversary milestone).
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph alpha">2016 March 25.</span>
+ Relocation with reference transforming maps (rtmap).
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph alpha">2015 October 9.</span>
+ λδ version 2A2 is started.
+ </li>
+ </ul>
+ <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="A1">Stage "A1": "Extending the Applicability Condition"</div>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph delta">2015 August 27.</span>
+ λδ version 2A1 appears too complex and is dismissed.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph gamma">2014 October 28.</span>
+ λδ version 2A1 is released.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph beta">2014 September 9.</span>
+ Iterated static type assignment defined (more elegantly)
+ as a primitive notion.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph beta">2014 June 18.</span>
+ Preservation of stratified native validity
+ for context-sensitive computation on terms.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph alpha">2014 June 9.</span>
+ Strong qrst-normalization
+ for simply typed terms.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph alpha">2014 April 16.</span>
+ Lazy equivalence on local environments
+ added as q-step to rst-computation on closures
+ (anniversary milestone).
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="emph alpha">2014 January 20.</span>
+ Parametrized slicing of local environments
+ comprises both versions of this operation
+ (one from basic_1, the other used in basic_2 till now).
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">