Costas D. Koutras

Knowledge means ‘<i>all</i>’, belief means ‘<i>most</i>’

2016 · Journal of Applied Non-Classical Logics

We introduce a bimodal epistemic logic intended to capture knowledge as truth in all epistemically alternative states and belief as a generalised ‘majority’ quantifier, interpreted as truth in most (i.e. a ‘majority’) of the epistemically …

A quick guided tour to the modal logic S4.2

2018 · Logic Journal of IGPL

The normal modal system S4.2 is a useful tool in Epistemic Logic: it has been advocated as the ‘correct’ logic of knowledge by Lenzen (1979, Erkenntnis, 14, 33–56) and Stalnaker (2006, Philos. Stud., 128, 169–199) …