Definition of Knowledge

Question 1

Tripartite Definition of Knowledge

Answer 1

View that a justified true belief is necessary and jointly sufficient as a definition of knowledge.
True - you can’t know something that is false (cheese moon example).
Belief - can’t know unless you believe it. Creates relationship between person and world.
Justification - Need to be properly justified, if you guess the correct answer, you wouldn’t consider that knowledge.

Question 2

Tripartite Definition of Knowledge Response - Gettier Case 1

Answer 2

Smith and Jones are interviewing for a job.
Smith hears interviewer say he’s giving Jones the job.
Smith also counts 10 coins in Jones’ pocket.
Smith forms belief, that the man with 10 coins in his pocket will get the job.
But smith gets the job.
By coincidence, Smith also has 10 coins in his pocket.
Justified - hears interviewer say.
Belief - lead to Smith form a belief.
True - The man who gets the job does indeed have 10 coins in his pocket.
However, seems wrong to say that Smith had knowledge because it is luck that led him to being correct. Shows that tripartite definition is not sufficient.

Question 3

JTB + No false lemmas definition of knowledge

Answer 3

Direct response to Gettier cases, adds extra condition to tripartite definition that rules out Gettier cases.
P is true.
James believes P.
Belief is justified.
James didn’t infer P from a false lemma.
A false lemma is a false belief, not inferred from anything false.
In case 1, Smith’s belief is inferred from the false lemma that “Jones will get the job”.
Can correctly say that Gettier cases do not count as knowledge, so more accurate analysis of knowledge then tripartite view.

Question 4

JTB + No false lemmas definition of knowledge responses.

Answer 4

Adds extra condition that rules out Gettier cases.
Says knowledge is something that is:
True
Believed
Justified
Not inferred from a false lemma.
A false lemma is a false belief, so not inferred from anything false.
‘Jones will get the job’ = false lemma.