Defining knowledge Flashcards
what is the tripartite definition of knowledge?
Justified, True, Belief
what are the three types of knowledge?
ability (I know how)
acquaintance (I know of)
propositional (i know that)
what are necessary conditions?
conditions that are required for something to fit a definition
—> ‘unmarried’ is a necessary condition for batchelor
what are sufficient conditions?
set of conditions that fully cover every requirement of a definition
—> unmarried man are sufficient conditions for bachelor
what are Gettier cases?
problems demonstrating that JTB isn’t a suitable definition of knowledge, they aren’t sufficient conditions- you can have a JTB which isn’t knowledge
Gettier case example
Barn county
what is the No False Lemmas definition of knowledge?
knowledge =
Justified
True
Belief
thats based on no false lemmas (beliefs)
name 3 strengths of No False Lemmas
— strengthens justification, preventing falsity
— deals with original Gettier cases
— allows past examples of “knowledge” that have been disproven to no longer count as knowledge
name 2 weaknesses of No False Lemmas
— doesn’t deal with modern Gettier cases (Ginet’s red barn)
— we might not realise that current knowledge is based on a false lemma: it leads to scepticism?
what is the Reliabilist definition of knowledge?
a true belief caused by a RELIABLE TRUTH AIMED COGNITIVE FUNCTIONING FACULTY (‘justified’ is too vague and subjective)
Reliable
True
Belief
a reliable method is something that produces a high percentage of true beliefs
give 3 strengths of the reliabilist definition of knowledge
— potentially better and more specific than justification
— allows children and animals to have knowledge without justification
— Nozick gets around Gettier cases
give 3 weaknesses of reliabilist definition of knowledge
— original version (before Nozick) fails to deal with Gettier cases
— potentially just as vague as justification
— ‘reliable’ still leaves room for error: most processes COULD be wrong in some cases
Nozick’s reliabilist solution to Gettier problems
a process is reliable if the belief formed from it being wrong changes your mind
Virtue Epistemology definition of knowledge
Virtuous (epistemic)
True
Belief
—> you must arrive at the true belief using epistemic virtue
what is epistemic virtue according to Sosa?
AAA
Adroitness (skill)
Accuracy (correctness)
Aptness (arriving at the accurate belief as a result of adroitness)