Two Plus Two Older Archives

Two Plus Two Older Archives (http://archives2.twoplustwo.com/index.php)
-   Science, Math, and Philosophy (http://archives2.twoplustwo.com/forumdisplay.php?f=45)
-   -   Epistemology (http://archives2.twoplustwo.com/showthread.php?t=366238)

10-26-2005 09:26 PM

Epistemology
 
Nothing specific, but I was just wondering how you answer the questions- What is Knowledge? and Do We Know Anything? Just looking for a little discussion on how to correctly answer these questions.

jason_t 10-26-2005 09:33 PM

Re: Epistemology
 
Read G.E. Moore.

chezlaw 10-26-2005 09:47 PM

Re: Epistemology
 
good intro

Its a huge subject. I'd recommend reading the relevent chunk of
Robert Nozick - Philosophical Explanations. Cambridge: Harvard University Press

chez

10-26-2005 09:47 PM

Re: Epistemology
 
I like the simple "knowledge = true, justified belief" definition.

The tricky bit, of course, is defining when a true belief is "justified". Personally, I insist on a causal element in my justifications. That is, I only allow a fact to be used as a justification for knowledge of a statement if the truth of that statement and the fact I am using are causally related in some way.

jason_t 10-26-2005 10:05 PM

Re: Epistemology
 
The Blackwell Epistemology: An Anthology book is really nice, too.

snowden719 10-26-2005 10:26 PM

Re: Epistemology
 
for those who think that justified true belief is knowledge I reccomend Edmund Gettier's essay "Is Knowledge Justified True Belief" it's very short and easy to understand.

chezlaw 10-26-2005 10:30 PM

Re: Epistemology
 
[ QUOTE ]
for those who think that justified true belief is knowledge I reccomend Edmund Gettier's essay "Is Knowledge Justified True Belief" it's very short and easy to understand.

[/ QUOTE ]

Gettier problems are in the link above.

chez

10-26-2005 10:31 PM

Re: Epistemology
 
I've read the gettier paper and although it complicates matters, the requirement of a causal relationship between the justification and the statement overcomes the problems he brings up.

Thus I can still call knowledge true, justified belief - I just must have more stringent requirements on the justifications I use.

chezlaw 10-26-2005 10:38 PM

Re: Epistemology
 
[ QUOTE ]
I've read the gettier paper and although it complicates matters, the requirement of a causal relationship between the justification and the statement overcomes the problems he brings up.

Thus I can still call knowledge true, justified belief - I just must have more stringent requirements on the justifications I use.

[/ QUOTE ]
The main problem I have with TJB is it skips the important bit about knowledge.

I want to tell which of my justified beliefs are true i.e. which are knowledge.
pointing out that the true ones are true isn't very helpful.

chez

jason_t 10-26-2005 10:52 PM

Re: Epistemology
 
[ QUOTE ]
[ QUOTE ]
I've read the gettier paper and although it complicates matters, the requirement of a causal relationship between the justification and the statement overcomes the problems he brings up.

Thus I can still call knowledge true, justified belief - I just must have more stringent requirements on the justifications I use.

[/ QUOTE ]
The main problem I have with TJB is it skips the important bit about knowledge.

I want to tell which of my justified beliefs are true i.e. which are knowledge.


[/ QUOTE ]

That's exactly what JTB is supposed to be doing.

S knows P is true iff
1. S believes P
2. P is true
3. S is justified in believing P.

chezlaw 10-26-2005 10:58 PM

Re: Epistemology
 
[ QUOTE ]
[ QUOTE ]
[ QUOTE ]
I've read the gettier paper and although it complicates matters, the requirement of a causal relationship between the justification and the statement overcomes the problems he brings up.

Thus I can still call knowledge true, justified belief - I just must have more stringent requirements on the justifications I use.

[/ QUOTE ]
The main problem I have with TJB is it skips the important bit about knowledge.

I want to tell which of my justified beliefs are true i.e. which are knowledge.


[/ QUOTE ]

That's exactly what JTB is supposed to be doing.

S knows P is true iff
1. S believes P
2. P is true
3. S is justified in believing P.

[/ QUOTE ]

I know that [img]/images/graemlins/smile.gif[/img]
but its a bit silly

suppose I have 1000's of justified beliefs.
Which ones are knowledge?
the true ones
oh great, thanks very much.

chez

10-26-2005 11:12 PM

Re: Epistemology
 
I guess if you are looking for a way of determining which of your justified beliefs are true, this definition wont solve all your problems. However, I dont think that is the point of defining knowledge. Perhaps it just is difficult to know which of your thousands of justified beliefs are knowledge and which are quite reasonable, yet wrong beliefs.

I use this definition and if I want to decide whether a justified belief is true (and hence knowledge) then the best I can do is test my justifications rigorously. Look for further evidence, see if the supposed knowledge meshes well with the rest of my knowledge of the world.

It is true that this definition wont convince a 100% skeptic, but I believe that's because the skeptic has unreasonable expectations - after all, what is a better definition?

chezlaw 10-26-2005 11:20 PM

Re: Epistemology
 
[ QUOTE ]
It is true that this definition wont convince a 100% skeptic, but I believe that's because the skeptic has unreasonable expectations - after all, what is a better definition?

[/ QUOTE ]
It doesn't make any difference to a skeptic apart from nicking a word they want to use differently.

chez

bearly 10-27-2005 12:41 AM

Re: Epistemology
 
to balance the above posts i would suggest one of the early efforts examining the logic of knowing: 'knowledge and belief'. author is jakko hinttika. chomsky if you can take his pompous style. also, dan dennett, a former prof of mine who has run the gamut from the 18th cent. british phils. to the head of the department of artificial intelligence at tuft's univ..............................b

chezlaw 10-27-2005 12:44 AM

Re: Epistemology
 
[ QUOTE ]
I guess if you are looking for a way of determining which of your justified beliefs are true, this definition wont solve all your problems. However, I dont think that is the point of defining knowledge. Perhaps it just is difficult to know which of your thousands of justified beliefs are knowledge and which are quite reasonable, yet wrong beliefs.

I use this definition and if I want to decide whether a justified belief is true (and hence knowledge) then the best I can do is test my justifications rigorously. Look for further evidence, see if the supposed knowledge meshes well with the rest of my knowledge of the world.

It is true that this definition wont convince a 100% skeptic, but I believe that's because the skeptic has unreasonable expectations - after all, what is a better definition?

[/ QUOTE ]

In terms of TJB the problem of skepticism can be seen by the fact you need the T.

A theory of justfication such that that JB->T is the holy grail of justification. It is the skeptics claim that it is impossible for JB->T.

chez

chezlaw 10-27-2005 12:50 AM

Re: Epistemology
 
[ QUOTE ]
to balance the above posts i would suggest one of the early efforts examining the logic of knowing: 'knowledge and belief'. author is jakko hinttika. chomsky if you can take his pompous style. also, dan dennett, a former prof of mine who has run the gamut from the 18th cent. british phils. to the head of the department of artificial intelligence at tuft's univ..............................b

[/ QUOTE ]

Thanks, Hinttika looks interesting I'll add him to my reading list. DD is already on it.

chez


All times are GMT -4. The time now is 08:36 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.