What is knowledge. need an analytic definition?
The classic definition of knowledge is “justified true belief”. For the most part, this is still a valid definition, though specialists in the field of epistemology (epistemology = theory of knowledge) will need to work out a more refined definition (due to issues such as the so-called Gettier problem). As I understand it, there is really no commonly agreed-upon definition of knowledge in epistemology. So again, it’s probably best to work with the classic definition (sometimes called “tripartite analysis”), namely, justified true belief. In order to know something, it has to be the case that (1) one believes it (2) one has justification for that belief (some kind of good reason or evidence that leads one to believe so) (3) what one believes is actually true The part about justification is needed basically because it would be problematic to call a true belief knowledge if one’s belief is based (for example) on a lucky guess.
