Hot on the heels of beta4, we have beta5. It fixes an annoying bug around
the `<=fd` constraint discovered by Gary Fredericks.

However the biggest change is the inclusion of an entirely new constraint
domain - Nominal Abstract Syntax. This exciting addition is thanks to the
awesome work of Nada Amin.

I don't expect this feature to be utilized by many, but if you're
interested in theoretical computer science (lambda calculus, pi-calculus,
type inferencers, and much more), it's incredibly fun stuff.

If you'd like to learn more about nominal logic programming I recommend the
following paper:
http://arxiv.org/abs/cs/0609062

I believe this may be the very first time nominal logic programming has
been properly hosted within a Constraint Logic Programming framework :)

Even if you're not interested in theoretical computer science, the
inclusion of this work has been critical in confirming the extensibility of
core.logic to other forms of logic programming without requiring any
critical changes to the core.

http://github.com/clojure/core.logic

Happy New Years!
David

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