Lecture 2 Flashcards
What are three forms of knowledge?
- Knowledge by acquaintance: you know something because you have seen it before (knowledge about friends/family), you can recall what it looks like (I know the Hague, i can recognise it)
- ‘How to’ knowledge: Skills knowledge, how to do something (i know how to ride a bike, skill that i have); subtle and complicated: teaching through trying but hard to explain in words how to ride a bike)
- Propositional knowledge: knowledge of facts; told in verbal form, sentence or utterance in the form: “I know that P” , where P is a proposition.
What is knowledge?
- Knowledge is a justified true belief
What are the conditions that must be fulfilled for ‘A knows that P’ (where A is a person, and P is knowledge) in the JTB account of knowledge?
A knows that P, if and only if:
- P is true (we are at wijnhaven)
- A believes that P (we believe that we are at wijnhaven)
- A is justified in believing that P (we saw the sign when we walked into the building)
If conditions 1-3 hold, then A knows that P
What does the JTB account do?
- Stipulates what circumstances have to obtain for “A knows that P” to apply
- Determines how difficult it is to attain knowledge
- Goes some way to telling up how to recognise cases of knowledge
The JTB account appeals to the concept of ‘truth’, what does truth mean?
- Truth is a property only of propositions (facts just are or are not)
- Other components of knowledge have success predicates of their own
- Correspondence theory of truth
What is the correspondence theory of truth?
- Truth amounts to correspondence to facts
- A proposition is true only if there is a fact corresponding to it
- Facts make our utterances true/false
What are two factors of the correspondence theory of truth, that determine whether proposition P is true:
- Content of P (needs to be true)
2. Structure of the world (relation between P and the world; does it correspond?)
What does ‘truth’ not depend on, according to the correspondence theory?
- Who asserts P
- The date or time
- Any other factor
If P is true, then it has and always will be true. Our assignments of truth change in time, but is P is true, then it always has been so, even if we have not always believed it.
What is a fact?
- A state of affairs in the world
- It makes a proposition true (correspondence theory)
- Facts are not propositions; but we use propositions to identify facts
- Facts are not true or false, facts just are or are not.