Chapter 1 Flashcards
What does it mean to know?
Knowing is the relation between a person and a proposition
What is the JTB account?
Justifiable True Belief is part of the traditional knowledge
- P is true
- X believes that P
- X’s belief is justified
JTB proposes that these 3 are sufficient and necessary for knowledge
What does it mean for a set of propositions to be sufficient for X?
It means that the set of propositions are collectively enough for X. Each proposition is necessary for X.
What does it mean for a set of propositions to be necessary for X?
It means that the set of propositions are each individually required for X. Collectively the set of propositions may not be sufficient for X, but are nevertheless required.
Why do humans care about forming the right beliefs?
Humans wish to follow the right beliefs as a consequence of previous events in order to move in an “upward” direction, rather than choose the wrong beliefs which may lead to an undesired future.
What is epistemology
This field explores the optimal way to think, reason, and form opinions, and the best methods of justification
How is truth acquired
Justification can help make a proposition more likely to be true
Some believe if the “truth” is gathered through good methods, this makes it more likely to be true.
As such, most accept that justification is an important aspect of forming true beliefs
What is belief?
Belief is our psychological attitude towards certain propositions.
Doxastic attitudes
The collection of our attitudes towards certain propositions (believe, neutral, (withholding), non-belief) are called doxastic attitudes (greek word doxa means opinions)
Trepartite classification scheme
The three attitudes towards certain propositions
- Believing
- Neutral (withholding)
- Non-believing
Epistemic evaluation
Justification linguistically is used to commend or critique someones beliefs
“A is justified” vs “A is justifiable”
is similar to
“A is commendable” vs “A is unwarranted”
Rational epistemic evaluation uses a rating system where 0 means no belief and 1 being very much believe (0 - 1)
Is justification and truth equivalent? (Do you need justification for something to be true?)
- You don’t need justification for something to be true
- A proposition can be true even if nobody believes it
Eg.)
You don’t need to count every grain of sand on the beach to propose there exists some X which deems there are X number of grains of sand on the beach”
- Something may be true simply due to the state of the world (metaphysical argument)
Eg.)
It is sunny outside may be true simply because it is sunny, not because someone saw that it is sunny (A tree falls over in the middle of the forest even if no one is there to witness so)
Tony’s argument (Epistemic Regress Problem)
P1: NY will have the best players
P2: NY has the strongest team
C: Therefor, NY will win the championship
While the propositions don’t guarantee the conclusion through deduction rules, it may be a reasonable non-deductive inference from P1 and P2 to the conclusion C.
A tree of reasons and justification may be as so:
Belief(C) / \ / \
Bel(P1) Bel(P2)
If we keep the tree going, we would end up with a regress of reasons
Epistemic Regress Problem
- The problem is how exactly does the regress of justification continue? Does the tree infinitely regress downwards? is there a bottom? Are there cycles?
Solutions:
- Infinitism
- Foundationalism
- Coherentism
Extra response:
Skepticism about the regress: None of the 3 above views solves the problem. As such there is no way inferential beliefs are justified as all 3 views fail. As such believe that justification can never be derived from inference
What is the problem of justification?
- How do you show inferential justification is possible? (The same justification that is used from one belief to the next in the regress of justification tree)
Synchronic reasoning and the epistemic regress problem
Synchronic reasons mean the individual belief(conclusion) is being made off of reasons that are held at that time of the belief being formed.
Eg.) - Regress of justification tree is dependent on synchronic reasoning
As such, justification “makes sense” because at that given time the reasoning works. (If Tony’s team sucked, then his argument for the team winning would be not as justifiable. As such his belief is derived from synchronic reasoning)
Diachronic reasoning
Juxtaposed to synchronic reasoning, diachronic reasoning is when a current belief with affect a future belief.
For example, if someone holds a certain belief at one point in time, diachronic reasoning would involve exploring how that belief might influence or shape their future beliefs. This could involve considering how experiences, information, or events over time may lead to a modification or reinforcement of their initial belief.
Problems of infinitism
- Starting points are needed, as they are what lead to transmitting to higher nodes. Basic foundational beliefs (starting points) provide justificational “juice” to the upper beliefs, without no basic beliefs, then how do upper beliefs exist with no juice? or atleast where does this juice come from if not from basic beliefs?
- Infinite nodes would mean infinite beliefs, but surely no human has infinitely many beliefs
Responses to the problems of infinitism
- Starting points are not needed for justification. Just as the universe and time may be eternal with no starting point, So may justification be the same.
- One can be shivering (and hence cold) despite not assenting or noticing that they are. (Note this can’t be embraced by infinitism as it is justification acquired from a nondoxastic source and hence a foundational justification)
As such propositions can be justified despite having no belief in them (It is possible to not know something, but still it is justified and nevertheless true.)
As such, even if a person has no infinite beliefs, there may be still infinitely potential possible propositions a person is justified in having at a given time. (Dubiousness of this is whether there is any merit to these potential propositions ability to justify other propositions when they haven’t even been believed in yet/given a relation to the agent)
Infinitism
One solution to the epistemic regress problem.
States that the correct structure of a regress is endless. Will not have repeated nodes and the branches never end as there is always another branch beneath it.