analytic philosophy, definition of knowledge, logic
It has become a commonplace in contemporary analytic philosophy to offer a contextual definition of knowledge in terms of the following statement of necessary and sufficient conditions:
a knows that p if and only if
(i) a believes that p
(ii) p is the case
(iii) a is justified in believing that p
An enormous amount of literature on various aspects of this statement has been produced and the discussion continues.
"Belief, Justification, and Knowledge – Some Late-Medieval Epistemic Concerns,"
Quidditas: Vol. 6
, Article 8.
Available at: https://scholarsarchive.byu.edu/rmmra/vol6/iss1/8