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Rough polyadic modal logics, introduced in the paper, contain modal operators of many arguments with a relational semantics, based on the Pawlak's rough set theory. Rough set approach is developed as an alternative to the fuzzy set philosophy, and has many applications in different branches in...
This paper develops two theories of time. One is a relational theory based on Russell's account of lime and the work by Kamp The other is a moderate absolute theory based on Allen and Hayes' account of time and the work by flambhn and Walker. The two theories are then compared in detail: the...
M. Freund, D. Lehmann, and D Makinson have introduced and examined a natural extension of finitary (non-monotonic) inference relations to the infinite case, which may be roughly described as an approximation from below We answer two questions left open there, discuss related problems, and...
There are considered temporal logics based on integers or natural numbers as moments of lime. It is proved that these logics have neither the Beth property nor the Craig interpolation property.
In this paper we look, at metrics and norms through many-valued logics, especially through the infinite-valued Lukasiewicz logic. It appears that the roots of those notions and constructions are just in many-valued logics rather than in the classical two-valued logic. This fact and some...
The instructions put together below fall into three categories. The editor of the review would be grateful to authors for respecting these indications. At times, the length of this summary may attain a dozen lines. It is to be written in size 8 italic Times.
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