PD Dr. Martin Fischer

Personal information

I studied at and received my PhD from LMU. My first postdoc position was at the KU Leuven in the Formal Epistemology Project. Thereafter I worked at the MCMP in a DFG-project with Prof. Leitgeb as principal investigator. After a one-year stay at the Scuola Normale Superiore, I carried out my own DFG-funded project, lasting three years, at the MCMP. I have held the position of assistant at the MCMP over several semesters.

Research interests

One of my main research interests is truth from the perspective of philosophy of language as well as logic, especially axiomatic theories of truth. I am also interested in modalities. In the area of philosophical logic, I carry out research on questions on logical pluralism. In the philosophy of mathematics I find epistemic question especially relevant, for example the question of implicit commitment.

Selected publications

1. Fischer, M. & Zicchetti, M.: Definite Totalities and Determinate Truth in Conceptual Structuralism. Synthese, 203(26): (2024).
2. Fischer, M. & Zicchetti, M.: Internal categoricity, truth and Determinacy. Journal of Philosophical Logic 52(5): 1295-1325 (2023).
3. Fischer, M. & Nicolai, C. & Dopico, P.: Nonclassical truth with classical strength. A proof-theoretic analysis of compositional truth over HYPE. Review of Symbolic Logic 16 (2): 425-448 (2023).
4. Fischer, M.: Is the Hype about strength warranted?. Synthese 200(3): 1-25 (2022).
5. Fischer, M.: Sequent calculi for the propositional logic of HYPE. Studia Logica 110(3): 643-677 (2021).
6. Fischer, M.: Another look at reflection. Erkenntnis 88(2): 479-509 (2021).
7. Fischer, M. & Horsten, L. & Nicolai, C.: Hypatia's silence, Truth, justification, and entitlement. Nous 55(1): 62-85 (2021).
8. Fischer, M. & Gratzl, N.: Truth, Partial Logic and Infinitary Proof Systems. Studia Logica 106(3): 515-540 (2018).
9. Fischer, M. & Horsten, L. & Nicolai, C.: Iterated Reflection over Full Disquotational Truth. Journal of Logic and Computation 27(8): 2631-2651 (2017).
10. Fischer, M. & Halbach, V. & Kriener, J. & Stern, J.: Axiomatizing Semantic Theories of Truth. Review of Symbolic Logic 8(2): 257-278 (2015).