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Elena Lisanyuk

Dr. Hab., Professor, St Petersburg State University (SpSU) Russia, Department of Logic, and a professor of National Research University Higher School of Economics  in Moscow, Russia. Elena Lisanyuk was born in Vilnius (Lithuania), obtained her PhD in St Petersburg in 1997 with a dissertation on medieval logic and her Doctorate in 2016 in Moscow with a dissertation on logic of argumentation. Key research areas are logic of argumentation and logic of norms; areas of expertise include also history of logic, logical pragmatic and legal philosophy.





Leon Petrażycki on Norms and Their Logical Study

Issue: 7:4 (The twenty eighth issue)
In this paper we discuss L. Petrażycki’s idea of norm as a normative relation
and show its repercussions in two perspectives connected to each other, in the
legal theory in the framework of which it was originally introduced and where
its role was straightforward, and in logic where it played a shadowy role of a
fresh idea which in his expectation would have been the core of the novel
logical theories capable of modelling reasoning in law and morals. We pay
attention to the scholarly environment in which Petrażycki has proposed those
ideas and to the

Issue: ()

Trends in Argumentation Logic

Issue: 11:3/4 (The forty third/fourth issue)
In this paper, we introduce the subject of the special issue Trends in Argumentation Logic. Here we mainly describe two approaches to argumentation logic with explicating monotonic and non-monotonic, or defeasible, reasoning and explain the role of artificial intelligence in applying argumentation logic. Then we give a short overview of the papers contributed to the special issue.

Determining Argumentative Dispute Resolution Reveals Deep Disagreement Over Harassment Issue (A Case-Study of a Discussion in

Issue: 11:3/4 (The forty third/fourth issue)
In 2018, three journalists accused one of the Members of the Russian Parliament of harassment at workplace. Many influential persons of the Russian elite engaged themselves in the public discussion of the conflict. We studied that high-profiled discussion using a hybrid method merging human- and logic-oriented approaches in argumentation studies. The method develops ideas of the new dialectics, the argumentation logic and the logical-cognitive approach to argumentation, on which is based the algorithm for determining of dispute resolution by aggregating formal and informal tools of analysis. We have reconstructed the discussion as two disputes about questions A and B. A: Did the MP violate the code of conduct by making statements or actions against the journalists? B: Are actions like the behavior of the MP harassment? The opinions of the discussion participants were grouped into the four points of view: A1 – the MP did not violate the code of conduct, A2 – the MP violated the code of conduct, B3 – the actions are not harassment, B4 – the actions are harassment. We mapped arguments in support or against each of them using OVA software, evaluated the arguments with the help of the critical questions, a tool proposed in the new dialectics, and determined the ultimate A + B resolution by applying of the algorithm that combines elements of gradual and labelling semantics from the argumentation logic and the classification of disputes from the dialectical approaches. The resolution was a subset of four arguments that ensured the victory of A1+B4. However, the substantial incompatibility of those arguments highlighted a deep disagreement, an unresolvable difference of opinion, between the parties about the permissibility of courtship. The deep disagreement, a bonus result yielded by the application of the hybrid method, excluded the interpretation of the determined resolution as convincing for the parties, but pointed out a way to smooth the difference of opinions by elaborating of legal, social and moral aspects of the problem of harassment at workplace.