Kapsner, AndreasRivieccio, Umberto2025-10-292025-10-292023-08-07Kapsner, A., Rivieccio, U. The Value of the One Value: Exactly True Logic revisited. J Philos Logic 52, 1417–1444 (2023). https://doi.org/10.1007/s10992-023-09711-w0022-3611 | eISSN 1573-0433https://doi.org/10.1007/s10992-023-09711-whttps://hdl.handle.net/20.500.14468/30673The registered version of this article, first published in “Journal of Philosophical Logic, vol. 52, 2023", is available online at the publisher's website: Springer, https://doi.org/10.1007/s10992-023-09711-wLa versión registrada de este artículo, publicado por primera vez en “Journal of Philosophical Logic, vol. 52, 2023", está disponible en línea en el sitio web del editor: Springer, https://doi.org/10.1007/s10992-023-09711-wProyecto de investigación: I+D+i research project PID2019- 110843GA-I00 La geometría de las lógicas no-clásicas funded by the Ministry of Science and Innovation of SpainIn this paper we re-assess the philosophical foundation of Exactly True Logic (ETL), a competing variant of First Degree Entailment (FDE). In order to do this, we first rebut an argument against it. As the argument appears in an interviewwith Nuel Belnap himself, one of the fathers of FDE, we believe its provenance to be such that it needs to be taken seriously.We submit, however, that the argument ultimately fails, and that ETL cannot easily be dismissed.We then proceed to give an overview of the research that was inspired by this logic over the last decade, thus providing further motivation for the study of ETL and, more generally, of FDE-related logics that result from semantical analyses alternative to Belnap’s canonical one. We focus, in particular, on philosophical questions that these developments raise.eninfo:eu-repo/semantics/openAccess72 Filosofía11 LógicaartículoExactly true logicFDETruth value glutsSuper-belnap logicsDesignated values