M Rybakov, D Shkatov - Journal of Logic and Computation, 2020 - academic.oup.com
We study the effect of restricting the number of individual variables, as well as the number and arity of predicate letters, in languages of first-order predicate modal logics of finite …
M Rybakov, D Shkatov - Journal of Logic and Computation, 2021 - academic.oup.com
We consider the effect of restricting the number of individual variables, as well as the number and arity of predicate letters, in languages of first-order predicate superintuitionistic …
M Rybakov, D Shkatov - Journal of Logic and Computation, 2021 - academic.oup.com
We study the algorithmic properties of first-order monomodal logics of frames,,,,,, as well as some related logics, in languages with restrictions on the number of individual variables as …
M Rybakov - Logic Journal of the IGPL, 2024 - academic.oup.com
In this paper, the predicate counterparts, defined both axiomatically and semantically by means of Kripke frames, of the modal propositional logics,, and their extensions are …
We prove that the positive fragment of first-order intuitionistic logic in the language with two individual variables and a single monadic predicate letter, without functional symbols …
M Rybakov, D Shkatov - Logic Journal of the IGPL, 2019 - academic.oup.com
While finite-variable fragments of the propositional modal logic S5—complete with respect to reflexive, symmetric and transitive frames—are polynomial-time decidable, the restriction to …
M Rybakov, D Shkatov - Journal of Logic and Computation, 2021 - academic.oup.com
We show that products and expanding relativized products of propositional modal logics where one component is the minimal monomodal logic K are polynomial-time reducible to …
M Rybakov, D Shkatov - Journal of Logic and Computation, 2022 - academic.oup.com
We show that products of propositional modal logics where at least one factor is one of the monomodal logics,, and are polynomial-time embeddable into their single-variable …
MN Rybakov, D Shkatov, N Olivetti, R Verbrugge… - AiML, 2020 - philarchive.org
We study algorithmic properties of first-order predicate monomodal logics of the frames (N,<) and (N,≤) in languages with restrictions on the number of individual variables as well as the …