Bertran-San-Millán, JoanArazim, PavelLávička, Tomas2026-02-192026-02-192018978-1-84890-281-7https://hdl.handle.net/20.500.14352/13263931th in the series of annual international symposia devoted to logic. The work on this paper was supported by the Formal Epistemology – the Future Synthesis grant, in the framework of the Praemium Academicum programme of the Czech Academy of Sciences.I put forward a new interpretation of Frege’s use of the formal system developed in Begriffsschrift, the concept-script. In contrast with the commonly-held view, I argue that this use suggests that he did not articulate a logicist programme in 1879. Two lines of argument support this claim. First, I show that between 1879 and 1882 Frege presented the concept-script of Begriffsschrift as a tool for arithmetic, and not as a logical theory from which to deduce arithmetical theorems. Second, I consider Frege’s results in Begriffsschrift and conclude that they do not imply an endorsement of his later logicist programme.engconference paperhttps://logika.flu.cas.cz/images/publikace/Yearbook/contents/content_logica_yearbook_2017.pdfhttps://logika.flu.cas.cz/en/events/logica/23-dokumenty/451-logica-2017restricted access16FregeLogicismLogisticBegriffsschriftConcept-scriptLógica (Filosofía)1103 Lógica General