JTB-Epistemology and the Gettier Problem in the framework of topological epistemic logic


Traditional epistemology of knowledge and belief can be succinctly characterized as JTB-epistemology, i.e., it is characterized by the thesis that knowledge is justified true belief. Since Gettier’s trail-blazing paper of 1963 this account has become under heavy attack. The aim of is paper is to study the Gettier problem and related issues in the framework of topological epistemic logic. It is shown that in the framework of topological epistemic logic Gettier situations necessarily occur for most topological models of knowledge and belief. On the other hand, there exists a special class of topological models (based on so called nodec spaces) for which traditional JTB-epistemology is valid. Further, it is shown that for each topological model of Stalnaker’s combined logic KB of knowledge and belief a canonical JTB-model (its JTB-doppelganger) can be constructed that shares many structural properties with the original model but is free of Gettier situations. The topological model and its JTB-doppelganger both share the same justified belief operator and have very similar knowledge operators. Seen from a somewhat different perspective, the JTB-account of epistemology amounts to a simplification of a more general epistemological account of knowledge and belief that assumes that these two concepts may differ in some cases. The JTB-account of knowledge and belief assumes that the epistemic agent’s cognitive powers are rather large. Thereby in the JTB-epistemology Gettier cases do not occur. Eventually, it is shown that for all topological models of Stalnaker’s KB- logic Gettier situations are topologically characterized as nowhere dense situations. This entails that Gettier situations are epistemologically invisible in the sense that they can neither be known nor believed with justification with respect to the knowledge operator and the belief operator of the models involved. Keywords. Stalnaker’s logic KB of knowledge and belief; Topological epistemology; Epistemic Invisibility; Doxastic invisibility; Gettier cases;



External links

  • This entry has no external links. Add one.
Setup an account with your affiliations in order to access resources via your University's proxy server

Through your library

  • Only published works are available at libraries.

Similar books and articles

‘Unlucky’ Gettier Cases.Jim Stone - 2013 - Pacific Philosophical Quarterly 94 (3):421-430.
Why Gettier Cases are misleading.Moti Mizrahi - 2016 - Logos and Episteme 7 (1):31-44.
Experimental epistemology and "Gettier" cases.John Turri - 2019 - In Stephen Hetherington (ed.), The Gettier Problem. Cambridge University Press. pp. 199-217.
Competence to know.Lisa Miracchi - 2015 - Philosophical Studies 172 (1):29-56.
Williamson on Gettier Cases and Epistemic Logic.Stewart Cohen & Juan Comesaña - 2013 - Inquiry: An Interdisciplinary Journal of Philosophy 56 (1):15-29.
Gettier cases in epistemic logic.Timothy Williamson - 2013 - Inquiry: An Interdisciplinary Journal of Philosophy 56 (1):1-14.
Is knowledge justified true belief?John Turri - 2012 - Synthese 184 (3):247-259.
Standard Gettier Cases: A Problem for Greco?Shane Ryan - 2014 - Grazer Philosophische Studien 90 (1):201-212.


Added to PP

94 (#133,137)

6 months
15 (#67,247)

Historical graph of downloads
How can I increase my downloads?

Author's Profile

Thomas Mormann
Ludwig Maximilians Universität, München (PhD)

Citations of this work

No citations found.

Add more citations