Abstract: Almost all semantics for logic programs with negation identify a set, SEM(P), of models of program P, as the intended semantics of P, and any model M in this class is considered a possible ...

This is a preview. Log in through your library . Abstract The logic of an "ought" operator O is contranegative with respect to an underlying preference relation ≥ ...

This is a preview. Log in through your library . Journal Information The Journal of Symbolic Logic (JSL) was founded in 1936 and it has become the leading research journal in the field. It is issued ...

the documentation advises to create on logical variable per Disjunct. I am wondering, whether this can be simplified in the case of only two Disjuncts. Maybe one can reduce the number of needed ...

Traditional file systems belong to the hierarchical paradigm, as well as Web portals such as Yahoo!, and many e-mail managers. Information is organized by first creating a hierarchy of concepts, which ...

Logical thinking is evident in young children even before they can speak, new research from the Barcelona’s Universitat Pompeu Fabra has found. Natural logical thinking, which manifests itself from a ...

A study led by the Universitat Pompeu Fabra Barcelona Center for Brain and Cognition investigates whether children who have yet to learn to speak or are developing speech are capable of reasoning. It ...