Thu Feb 8th, 14:00-16:00
Philosophy building, room 508
King’s College London

Sven Rosenkranz (LOGOS, ICREA, U Barcelona), will give a talk titled “The Logic of Justification – Reloaded” at the Formal Methods research seminar, King’s College London, this Thursday 2-4pm. Open to all graduates and scholars interested. Please sign in as a visitor at the entrance, follow the signs to the Philosophy building, follow the signs to the philosophy office, room 508 is just right of the office.

Abstract:

Against the backdrop of minimal assumptions about knowledge and being in a position to know, I introduce, and defend, two non-standard principles of epistemic logic. Then I stipulatively define two operators, J and D, and formulate two interpretative hypotheses: that J, as defined, captures propositional justification, and that D, as defined, captures doxastic justification. I go on to present an idealised non-normal system incorporating the aforementioned principles and definitions, and highlight interesting theorems involving the operators J and D. The derivability of a significant number of these theorems already lends support to the interpretative hypotheses. However, the idealisation involved in the system is too strong. Accordingly, I present a second non-normal system that is more realistic but still allows derivation of those same theorems. Finally, I address, and defuse, a general argument against the interpretative hypotheses, meant to show that J and D at best capture notions of blamelessness.