Event Detail

Fri Oct 6, 2006
60 Evans Hall, 4:10–6 PM
Logic Colloquium
Sherri Roush (UC Berkeley)
Knowledge of Logical Truth

Logical and other necessary truths present a challenge to both internalist and externalist views of knowledge, for different reasons; the internalist makes it too hard to know obvious logical truths, the externalist makes it too easy to know sophisticated ones. I define knowledge of logical truth in a way that avoids these problems and takes its bearings from an externalist account of knowledge of logical implication. On this view knowing a logical truth is a matter of being responsive to the special relationship that proposition has to other propositions in the language. This account implies that logical truths cannot be known by authority, and provides a neat resolution of the paradox of entailment.