On the face of it, Gettier cases do indeed show only that not all actual or possible justified true beliefs are knowledge — rather than that a belief’s being justified and true is never enough for its being knowledge.
Is Justified True Belief Knowledge By Edmund L gettier?
On their account, knowledge is undefeated justified true belief — which is to say that a justified true belief counts as knowledge if and only if it is also the case that there is no further truth that, had the subject known it, would have defeated her present justification for the belief.
What does Gettier say about knowledge?
Gettier presented two cases in which a true belief is inferred from a justified false belief. He observed that, intuitively, such beliefs cannot be knowledge; it is merely lucky that they are true. In honour of his contribution to the literature, cases like these have come to be known as “Gettier cases”.
Is Gettier arguing that belief truth and knowledge are not sufficient for knowledge?
1. True belief is not sufficient for knowledge; since a belief can be true by accident or lucky guesswork, and knowledge cannot be a matter of luck or accident. 2. So knowledge requires justification—i.e., having sufficient reasons for one’s beliefs.
What do gettier problems show?
A Gettier problem is any example that demonstrates that an individual can satisfy the classical analysis of knowledge – justified true belief – without possessing knowledge.
What are Gettier assumptions?
The Gettier problem makes two assumptions, that (i) it is possible for p to be epistemically justified yet p to fail to be true, and (ii) epistemic closure.