Abstract
In reasoning tasks involving logical formulas, high expressiveness is desirable, although it often leads to high computational complexity. We study a simple measure of expressiveness: the number of formulas expressible by a language, up to semantic equivalence. In the context of constraints, we prove a dichotomy theorem on constraint languages regarding this measure.
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Chen, H. The expressive rate of constraints. Ann Math Artif Intell 44, 341–352 (2005). https://doi.org/10.1007/s10472-005-7031-4
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DOI: https://doi.org/10.1007/s10472-005-7031-4