Interconvertbility of set constraints and context-free language reachability

Abstract
We show the interconvertibility of context-free-language reachability problems and a class of setconstraintproblems: given a context-free-language reachability problem, we show how to construct aset-constraint problem whose answer gives a solution to the reachability problem; given a set-constraintproblem, we show how to construct a context-free-language reachability problem whose answer gives asolution to the set-constraint problem. The interconvertibility of these two formalisms offers an ...

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