A concurrent _(Lisp) providing first-class environments as a universal data structure. The elements of each environment (which can nest) are lazily computed in an unspecified order in many cases.

This language, like _(Kali) (its successor) provides the lambda and other constructs non-primitively.

<ul class="links">
<li>_("Environments as First Class Objects"|http://citeseer.nj.nec.com/gelernter87environments.html).</li>
<li>_("A Programming Language Supporting First-Class Parallel Environments"|http://citeseer.nj.nec.com/jagannathan89programming.html).</li>
</ul>
