Epistemology: What Is Knowledge Flashcards
What are the 3 types of knowledge
- ability
- acquaintance
- propositional
Ability knowledge/practical knowledge
-Knowing how to do something.
-Knowledge that involves a skill or capability to perform a certain kind of task but doesn’t need to involve having any explicit understanding of what such performance entails.
- practical knowldge is independent of any abikogy to communicate it in language
EXAMPLE: I may know how to swim but would find it difficult to give verbal instructions
Acquaintance knowledge
- knowing ‘of’.
-Knowing in the sense of knowing a person, thing, sensation or feeling.
-knowledge by acquaintance does not need to involve any capacity to give a verbal report of what it entails
-some philosophers argue that acquaintance knowledge is the foundation of all our knowledge about the world. Our knowldge is built uo from our acquaintance with shapes, colours, sounds and tastes and without these elements there would be no knowldge at all. Without the input of the senses, our mind would be a blank slate (tabula rasa)
EXAMPLE: - I may know the taste of pineapple without being able to describe it and without knowing any facts about it
Propositional knowledge
- knowing that something is the case.
-when we know some fact, what we know can, in principle can be expressed in language
EXAMPLE:
2+2=4
The earth orbits the sun
What are the nature of definitions
Real and artificial definitions
Real definition
Definining something by explaining the nature of what we are defining. This required the thing to objectivity have a nature and essence.
EXAMPLE:
Water is a real definition as there are alot of liquids in the world and we classify some as water, there is a genuine difference between liquids on a molecular scale such as liquids called water H2O. We could put water under a microscope and investigate the real difference between water and other liquids, there is a real essence we could discover
Artificial definition
When you define something that has no essence or nature.
EXAMPLE:
Weeds, there are alot of plants in the world and we classify some as weeds however there is no underlying genetic difference between weeds and non-weeds and instead it is culturally specific due to the question of which plants humans like in their gardens.
What does Zagzebski suggest
Zagzebski thinks that it is ambiguous whether concepts such as intelligence and knowldge can have rea, definitions. She suggests that we should treat knowldge as if it does have a real essence and so should seek a real definition until we can show that we have failed to find one.
What is the tripartite theory
Someone has propositional knowldge if and only if three conditions have been met:
1. S must BELIEVE p
2. S is JUSTIFIED in believing p
3. p is TRUE
- each of these three conditions are NECESSARY for knowledge
- the three conditions together are SUFFICIENT for knowledge
Why is justification a necessary condition for knowledge
As everything you know should have a reason. There must be some sort of connection between the fact that S believes p and the fact that p is true
Why is truth a necessary condition for knowledge
You cannot know that something is true if in fact it is false, so if you are to know p, then p must be true.
You can believe that something is true when really it is false however you cannot really know something to be true if in fact it is false
Why is belief a necessary condition for knowledge
There must be some connection between S and p. S must have some sort of mental relation to p; but this relation has be of a certain kind. There are attitudes which S might have towards p however if S is to know p, S must accept p is true by believing p.
Individually necessary
‘X is an individually necessary condition for Z’ means ‘without x, you can’t have z’
- having 4 sides is a necessary condition for something to be a square, without 4 sides, something is not a square
Jointly sufficient
‘X is a sufficient condition for z’ means ‘if X then Z’
- having 4 sides, the sides are equal in length and they are at right angles to each other are together jointly sufficient for a shale to be square. If something meets these three conditions, then it is a square
A priori justification/knowledge
The justification is independent of experience.