Restricted ideals and the groupability property. Tools for temporal reasoning
Abstract
In the field of automatic proving, the study of the sets of prime implicants or implicates of a formula has proven to be very important [17, 19, 20, 21]. If we focus on non-classical logics and, in particular, on temporal logics, such study is useful even if it is restricted to the set of unitary implicants/implicates [3, 4, 5, 6]. In this paper, a new concept we call restricted ideal/filter is introduced, it is proved that the set of restricted ideals/filters with the relation of inclusion has lattice structure and its utility for the efficient manipulation of the set of unitary implicants/implicates of formulas in propositional temporal logics is shown. We introduce a new property for subsets of lattices, which we call groupability, and we prove that the existence of groupable subsets in a lattice allows us to express restricted ideals/filters as the inductive closure for a binary non-deterministic operator and, consequently, the presence of this property guarantees a proper computational behavior of the set of unitary implicants/implicates.
Citation
Please, cite this work as:
[Mar+03] J. Mart', P. Cordero, G. Gutiérrez, et al. “Restricted ideals and the groupability property. Tools for temporal reasoning”. In: Kybernetika 39.5 (2003), pp. 521-546. URL: http://www.kybernetika.cz/content/2003/5/521.