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The AND-Compositionality of CLP Computed Answer Constraints (AGP'96)

[Page last updated on "gennaio 13, 2005, 15:31:42".]

Roberto Bagnara, Marco Comini, Francesca Scozzari, and Enea Zaffanella


We present a semantic characterization of CLP languages for the class of quick-checking systems. We define a semantics of computed answer constraints which is AND-compositional, does not loose the distinction between active and passive constraints in the answers and has both a top-down and a bottom-up characterization. We also show that an incrementality property we impose on the constraint solver is essential in order to define an AND-compositional atom-based semantics.

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© Enea Zaffanella

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