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About Epistemic Negation and World Views in Epistemic Logic Programs

Published online by Cambridge University Press:  20 September 2019

STEFANIA COSTANTINI*
Affiliation:
DISIM - Università dell’Aquila, Italy (e-mail: stefania.costantini@univaq.it)

Abstract

In this paper we consider Epistemic Logic Programs, which extend Answer Set Programming (ASP) with “ epistemic operators” and “ epistemic negation”, and a recent approach to the semantics of such programs in terms of World Views. We propose some observations on the existence and number of world views. We show how to exploit an extended ASP semantics in order to: (i) provide a characterization of world views, different from existing ones; (ii) query world views and query the whole set of world views.

Type
Original Article
Copyright
© Cambridge University Press 2019 

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