It seems to me that any proof that logic provides must be confirmed by some observation. 2 + 2 = 4 are just scribbles on a page. What do the scribbles refer to in the world to make 2 + 2 = 4 useful and true? 2 + 2 = 4 is true, but why is it true? It's because we observe and categorize similar objects into groups so that there can be more than one of some thing. If everything were unique and there were no categories then there would only ever be one of anything and 2 + 2 = 4 would be meaningless. The idea of quantities is dependent upon the idea that things share a particular "essence" or "substance" to be grouped into similar categories to then say that there is a quantity of that particular "essence" or "substance", like cows, rocks and stars.Can you explain in virtue of what a belief would be "justified" without any reference to truth? How does logic "justify" a belief without reference to logic's relationship to truth in particular?
It seems to me that this will be difficult. — Count Timothy von Icarus
The information one possesses could be memories where one used the information before and was successful in accomplishing some goal with that information, and would probably solve the present problem as well being that both circumstances are similar.The point made is that in order to be said to know something, it's not usually enough to have the information; one also should be able to act on that information. — Banno
. Very much so. Knowledge is embedded in what we do, in ways well beyond the place of information. — Banno
it's not usually enough to have the information; one also should be able to act on that information.
So what do we conclude?
If it's a detailed instruction on how to juggle balIs, yes. I can believe that a statement or instruction or description is true, but I can't know it unless I test it by some independent means. Verify the statement through other sources, follow the instruction and succeed in the endeavour, examine the described object through my own senses.Do you take the assessment of the truth value of a proposition as knowing-how knowledge, equivalent to juggling balls — Hanover
Yes. And how are cognitive grasps formed? Sensory input+experience+learning+memory+reflection. They're made in the web of knowing the world.Seems evaluating statements requires cognitive grasp of concepts. — Hanover
Another solution would be to dispense with the word, "true" as a descriptor of knowledge. Knowledge would be justified beliefs, and beliefs are justified by both observation AND logic. Beliefs would only be justified by one or the other, or neither. Knowledge requires confirmation from both. — Harry Hindu
Do you take the assessment of the truth value of a proposition as knowing-how knowledge, equivalent to juggling balls? Seems evaluating statements requires cognitive grasp of concepts. — Hanover
What do you think is happening when a person grasps a concept? — frank
Revealed to witnesses by the product, yes. But the sculptor's knowledge was acquired gradually, by learning the concept of sculpture, assimilating information about the potential, properties, vulnerabilities and hazards of the medium, the tools and the processes, perhaps watching someone else do it, integrating this multitude of facts (true information) into his neural network, with tags for retrieval at need, and then practicing the required actions on real materials, until finally a sculpture emerges.Knowledge of sculpting is revealed in sculpting. — Count Timothy von Icarus
Lots of things are 100% true that I can never know. More things are true that I believe with 90-99% certainty, but don't know. There is an even greater number of facts of which I am in possession, which are at some stage of the verification and integration process on their way to becoming knowledge... unless I forget them before the process is finished.This is just to say propositional truth need not be how-to truth, and taking the position it must be in 100% — Hanover
'I am writing my first post on this board'' is true and is knowledge.
— Jack2848
Sez you, who made it true by Direct experience. I have no way of testing the statement. (You might have had 18 different online personae over the years.
(Welcome, or welcome back, whichever applies.)
''The truth value we can imagine not depending on your perception otherwise we'd have contradictions galore. Surely we can make a distinction between truth assumption by person x vs our recognition that x could be false anyway. (In a practical way)
— Jack2848
Exactly, which is why a piece of information, however true and correct, is not knowledge until it's verified by comparison to previous experience, tested against logic and probability and incorporated into a personal data-base. When you experience and remember something, it becomes part of your knowledge. When you communicate it to someone else, it doesn't necessarily part of their knowledge.
If a proposition is true then it is true information. So if we'd use the word knowledge for that then sure.
— Jack2848
But I'm not using one word when I mean a different word. Why should I?
Pretty much. Working out what is true and what isn't, is an activity, something we do. We look around, we do the calculation.Do you take the assessment of the truth value of a proposition as knowing-how knowledge — Hanover
...not so much...equivalent to juggling balls? — Hanover
"cognitive grasp of concepts..." You are said to grasp a concept if you can show that you understand it. You show that you grasp the concept of bike riding by riding a bike, or at least by recognising a bike rider.Seems evaluating statements requires cognitive grasp of concepts — Hanover
This is also good. Wittgenstein pointed out that we do not know we have a pain, we just have a pain - and here he is using "know" as justified true belief, and pointing out that it makes little sense to talk of justifying to oneself that one is in pain - since what counts as the evidence is just the pain itself.Knowledge doesn't need to be about how; that's just one kind - practical knowledge. The input of one's own senses and internal functioning is another kind - direct internal knowledge. The second kind doesn't need further study, since it's already integrated: it's established in the material body as well as in the mind. Sensations are known without reference to language or concept. — Vera Mont
...potential energy... — frank
You're not.Suppose I know P, but I never act on it. How am I different from a person who knows P, but can't act on it? — frank
Not that much earlier, and not quite as you put it. The experiencer of a sensation knows that sensation to be true, without making any statement. It's not made true and it's not information; it's true because it's inside of the experiencer. It's not true for anyone else. It can be communicated to others and they may believe it, but they cannot know it.Earlier you said something is made true by direct experience. — Jack2848
Truth-maker? No, I never referred to any such thing. What I said was that a statement may be true and we can believe it, which makes it our belief. But information doesn't become knowledge until it's been verified and incorporated with our data base.But since from what you said it follows that you're position at least how it's presented here is that 'the truth maker' is not something like 'p if p'. But rather direct undoubtedable experience. Or justified true belief. — Jack2848
I'm all too keenly aware of that. If it gets much more lax, we might as well give up on verbal communication, since any word can mean whatever anyone chooses.I meant to show how people use the same words with different meanings. — Jack2848
If you understand the relationship between rationalism vs empiricism then all I am saying is that knowledge is supported by integrating both rather than treating them as a dichotomy. Beliefs are supported by only one or the other or neither.I agree with the first sentence. With the rest of it, you lost me a bit. — T Clark
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