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20212026
most citedQualitative reasoning in a two-layered framework

7 citations · 31 across the 26 of their papers we have counts for

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26 papers

cs.LO2026

Reasoning About Probabilities, Actions, and Knowledge in Fuzzy Modal Logic

Daniil Kozhemiachenko, Igor Sedlár

We explore a fuzzy modal logic that can formalise probabilistic reasoning about actions and knowledge. In particular, we deal with contexts involving statements about events expres…

cs.LO2026

Probabilistic Abduction in a Fuzzy Logic Framework

Tommaso Flaminio, Katsumi Inoue, Daniil Kozhemiachenko

We study the problem of explaining observations about the probabilities of events, such as "it rains of the time", "rain and snow are equally likely", etc. We explain these…

cs.LO2025

Complexity of Łukasiewicz Modal Probabilistic Logics

Daniil Kozhemiachenko, Igor Sedlár

Modal probabilistic logics provide a framework for reasoning about probability in modal contexts, involving notions such as knowledge, belief, time, and action. In this paper, we s…

math.LO2025

Tableaux for epistemic Gödel logic

Marta Bílková, Thomas Ferguson, Daniil Kozhemiachenko

We propose a multi-agent epistemic logic capturing reasoning with degrees of plausibility that agents can assign to a given statement, with interpreted as "entirely plausible f…

cs.LO2025

Paraconsistent Constructive Modal Logic

Han Gao, Daniil Kozhemiachenko, Nicola Olivetti

We present a family of paraconsistent counterparts of the constructive modal logic CK. These logics aim to formalise reasoning about contradictory but non-trivial propositional att…

cs.LO2025

Complexity of Abduction in Łukasiewicz Logic

Katsumi Inoue, Daniil Kozhemiachenko

We explore the problem of explaining observations in contexts involving statements with truth degrees such as `the lift is loaded', `the symptoms are severe', etc. To formalise the…

math.LO2025★ 1 cited

Modal Logic for Reasoning About Uncertainty and Confusion

Marta Bílková, Thomas M. Ferguson, Daniil Kozhemiachenko

We consider a modal logic that can formalise statements about uncertainty and beliefs such as `I think that my wallet is in the drawer rather than elsewhere' or `I am confused whet…

cs.LO2024★ 1 cited

Abductive Reasoning in a Paraconsistent Framework

Meghyn Bienvenu, Katsumi Inoue, Daniil Kozhemiachenko

We explore the problem of explaining observations starting from a classically inconsistent theory by adopting a paraconsistent framework. We consider two expansions of the well-kno…

cs.LO2024

Queries With Exact Truth Values in Paraconsistent Description Logics

Meghyn Bienvenu, Camille Bourgaux, Daniil Kozhemiachenko

We present a novel approach to querying classical inconsistent description logic (DL) knowledge bases by adopting a~paraconsistent semantics with the four Belnapian values: exactly…

math.LO2024★ 1 cited

Filter-induced entailment relations in paraconsistent Gödel logics

Sabine Frittella, Daniil Kozhemiachenko

We consider two expansions of Gödel logic with two versions of paraconsistent negation. The first one is -- the expansion of with an in…

math.LO2024

Non-distributive relatives of ETL and NFL

Daniil Kozhemiachenko

In this paper, we devise non-distributive relatives of Exactly True Logic (ETL) by Pietz and Riveccio and its dual (NFL) Non-Falsity Logic by Shramko, Zaitsev and Belikov. We consi…

math.LO2024

Generalisation of proof simulation procedures for Frege systems by M.L.~Bonet and S.R.~Buss

Daniil Kozhemiachenko

In this paper, we present a~generalisation of proof simulation procedures for Frege systems by Bonet and Buss to some logics for which the deduction theorem does not hold. In parti…

math.LO2024★ 4 cited

Non-contingecy in a paraconsistent setting

Daniil Kozhemiachenko, Liubov Vashentseva

We study an extension of First Degree Entailment (FDE) by Dunn and Belnap with a non-contingency operator which is construed as " has the same value in all acc…

math.LO2024

Two-layered logics for probabilities and belief functions over Belnap--Dunn logic

Marta Bilkova, Sabine Frittella, Daniil Kozhemiachenko +1

This paper is an extended version of an earlier submission to WoLLIC 2023. We discuss two-layered logics formalising reasoning with probabilities and belief functions that combine…

math.LO2024

Simple tableaux for two expansions of Gödel modal logic

Marta Bilkova, Thomas Ferguson, Daniil Kozhemiachenko

This paper considers two logics. The first one, , is an expansion of the Gödel modal logic with the involutive negation $\…

math.LO2023

Fuzzy bi-Gödel modal logic and its paraconsistent relatives

Marta Bilkova, Sabine Frittella, Daniil Kozhemiachenko

We present the axiomatisation of the fuzzy bi-Gödel modal logic (formulated in the language containing and treating the coimplication as a defined connective) and estab…

math.LO2023★ 2 cited

Knowledge and ignorance in Belnap--Dunn logic

Daniil Kozhemiachenko, Liubov Vashentseva

In this paper, we argue that the usual approach to modelling knowledge and belief with the necessity modality does not produce intuitive outcomes in the framework of the Bel…

math.LO2023★ 1 cited

Non-standard modalities in paraconsistent Gödel logic

Marta Bilkova, Sabine Frittella, Daniil Kozhemiachenko

We introduce a paraconsistent expansion of the Gödel logic with a De Morgan negation and modalities and . We equip it with Kripke semantics on…

math.LO2023

Paraconsistent Gödel modal logic on bi-relational frames

Marta Bilkova, Sabine Frittella, Daniil Kozhemiachenko

We further develop the paraconsistent Gödel modal logic. In this paper, we consider its version endowed with Kripke semantics on -valued frames with two fuzzy relations $R^+…

math.LO2023★ 2 cited

Two-layered logics for paraconsistent probabilities

Marta Bilkova, Sabine Frittella, Daniil Kozhemiachenko +1

We discuss two two-layered logics formalising reasoning with paraconsistent probabilities that combine the Lukasiewicz -valued logic with Baaz operator and the B…

math.LO2023

Presumptive Reasoning in a Paraconsistent Setting

Sabine Frittella, Daniil Kozhemiachenko, Bart Verheij

We explore presumptive reasoning in the paraconsistent case. Specifically, we provide semantics for non-trivial reasoning with presumptive arguments with contradictory assumptions…

math.LO2022★ 3 cited

Crisp bi-Gödel modal logic and its paraconsistent expansion

Marta Bilkova, Sabine Frittella, Daniil Kozhemiachenko

In this paper, we provide a Hilbert-style axiomatisation for the crisp bi-Gödel modal logic $\KbiG$. We prove its completeness w.r.t.\ crisp Kripke models where formulas at each st…

math.LO2022★ 7 cited

Qualitative reasoning in a two-layered framework

Marta Bilkova, Sabine Frittella, Daniil Kozhemiachenko +1

The reasoning with qualitative uncertainty measures involves comparative statements about events in terms of their likeliness without necessarily assigning an exact numerical value…

math.LO2022

Paraconsistent Gödel modal logic

Marta Bílková, Sabine Frittella, Daniil Kozhemiachenko

We introduce a~paraconsistent modal logic , based on Gödel logic with coimplication (bi-Gödel logic) expanded with a De Morgan negation . We use the l…