Philosophy of Science

Department Philosophy of science is successor of department Logical systems and models and department Philosophy of science.

The research interests of the department members in the field of logic are oriented towards investigations, determined by the rapid development of non-classical logics such as paraconsistent, relevant and connexive logics, many-valued and fuzzy logics, non-monotonic systems, semantics of possible and impossible worlds, theories of vagueness and others, as well as their applications in epistemology, ontology, linguistics and computer science. The research interest is also directed to the specifications of logical consequence in different logical theories, theories of argumentation, logical paradoxes, as well as problems of the history of logic, etc.

The leading themes and problems in the field of philosophy of science are focused on general philosophy of science, philosophy of physics, philosophy of medicine, philosophy of mathematics, problems of scientific knowledge, dynamics of scientific theories, philosophy of space and time, logical approach to AI and others. The department is leading philosophy of science department in the country.

The department scientists have an excellent research training. Their work has been recognised by the international scientific community, as it is evident by their publications, specializations, fellowships and successful projects track.

The members of the Department have a good experience not only in research, but also in teaching.

The Department offers doctoral degrees, recognised virtually everywhere in the world, where the phd students and the doctoral candidates receive a European level training.

The members of the department are actively engaged in a multitude of social and state initiatives, mostly concerning the problems of scientific knowledge.

The members of the department have a number of publications, some of which in prestigious international journals as well as good contacts with several leading universities and academies like Oxford University, University of Pittsburgh, University of Rijeka, CEU, the Czech academy of sciences, the Polish academy of sciences  and others.

The Department published the first of its kind in Bulgaria “Encyclopedic Dictionary on Logic and Semantics” (Zvezdi Press, 2012), which continues to complement and update.

At 2019 is published collection of papers with the title “Non-classical science and non-classical logics. Philosophical and methodological analyses and assessments” (Paradigma press, 2019). The collection of papers contains results from the first stage of the project with the same name.

The Department organizes an annual conference “Logical Models”, which in the most cases is international or with international participation.

Current projects of the Department Philosophy of science:

  • Joint project “Non-classical Logical Systems and Their Applications” (2017-2019 including) with the Institute of Philosophy, Czech Academy of Sciences; team leader from the Bulgarian side – Assoc. Prof. Doroteya Angelova
  • Joint project “Logical Models, Analyses and Explanations of Cognition” (2018-2020 including) with the Institute of Philosophy and Sociology, Polish Academy of Sciences; team leader from the Bulgarian side – Assoc. Prof. Doroteya Angelova
  • Project “Non-classical science and non-classical logics. Philosophical and methodological analyses and assessments” (2018-2020 including), funded by the National Science Fund of Bulgaria – team leader Prof. DSc Angel Stefanov
  • Project “Contemporary debates in philosophy of science” (2019-2022) – team leader Prof. DSc Angel Stefanov
  • Project „A comprehensive study of the Beron Family and its contribution to the intellectual development of Bulgaria and the integration of Bulgaria into European science and culture“ (2018-2020 including), funded by the National Science Fund of Bulgaria – team leader Prof. DSc Martin Tabakov

Staff Members

DSc. Assoc. Prof. Aleksi Apostolov

Violeta Koleva 847 75 70 – Secretary


Philosophy and Sociology of Medicine Working Group is an interdisciplinary network of researchers interested in the philosophical and sociological aspects of evidence-based and patient-oriented medicine; specifically, in medical reasoning, medical decision making and doctor-patient relationship. The group was founded by some representatives of different departments at the Institute of Philosophy and Sociology (Bulgarian Academy of Sciences), as well as different academic institutions such as Sofia University, Medical University of Varna (MU-Varna). The WG’s primary objective is to delineate the field of some not so well-known topics within the philosophical and sociological discourses in Bulgaria.

Topics of interest include, but are not limited to:

philosophy of medicine

evidence-based medicine,

patient-oriented medicine,

sociology of medicine,


philosophy of disability

sociology of disability

politics of disability

history of disability

values-based medicine,

neuroscience of ethics

ethics of neuroscience

machine medical ethics.


The PhilSocMed working group aims at filling-in the gaps between philosophy and sociology of medicine and medicine by serving as an initiator of ideas for research collaboration in the aforementioned fields, as well as developing strategies for applying the outcomes of research collaboration in practice.

The PhilSocMed working group’s goal is to encourage the establishment of a broad, inclusive research community with a diverse interdisciplinary background. The objective is this community to necessitate:

  1. the conduction of collaborative inquiry into philosophy and sociology of medicine’s contributions to medicine
  2. the implementation of some outcomes reached by philosophy and sociology of medicine in the process of policy making
  3. the expansion of the public debates about the role of philosophy and sociology of medicine


Working group membership:

Associate Professor, PhD Julia Vasseva-Dikova (chair)

Professor, DSc Bozhidar Ivkov

Professor Aleksander Gungov – Sofia University

Associate Professor, PhD Silviya Serafimova

Assist. Professor, PhD Iva Georgieva

For more information, please contact