Clojurians Log v2

Wat is the benefit of using finite domains instead of just constraining a var to a set of values with membero?

It has optimisations that mean not all values need to be specified up front; e.g. you can specify a lower and upper bound on a constraint, and it can operate and propagate constraints on the intervals directly. Also it gives you relational versions of operators like < > + - etc that leverage the above.