moving finger said:
With respect, the “definition of understanding” is open to debate (ie is not a foregone conclusion) – you have said so yourself in other posts that your definition of understanding may be different to others’ definitions of understanding.
Tisthammerw said:
It depends what you mean by “open to debate.” Is it open to debate what I mean by “understanding”?
This is not what I said.
I said “
the definition of understanding is open to debate”; I did not say “Tisthammerw’s definition of understanding is open to debate”.
There is a difference.
Or are you perhaps suggesting there is one and only one possible definition of understanding in the universe, and that is the one called “Tisthammerw’s definition of understanding”?
moving finger said:
If there is more than one possible definition of a term in an argument then it stands to reason that to subjectively select one definition in preference to others automatically places that definition as a “premise” in that argument.
Any premise can be disputed.
Tisthammerw said:
Not really. Suppose a premise for the argument is “all bachelors are unmarried.”
This premise cannot reasonably be disputed.
The important word here is “reasonably”.
I did not say (as you seem to think) that “any premise can be reasonably disputed”. Obviously it depends on the premise, and it then becomes a matter of opinion whether a dispute is reasonable or not. I could dispute the premise “all bachelors are unmarried”, but I agree that would be unreasonable.
However I do
not consider it unreasonable to dispute the premise “consciousness is necessary for understanding”
Tisthammerw said:
Speaking of “subjectively select one definition in preference to others” aren't you doing the same thing yourself by using “understanding” in another sense?
Of course. My definition of understanding is just as subjective as any other – I never tried to suggest otherwise. I am not so arrogant as to think that I have special access to the “right definition” – are you?
Tisthammerw said:
Additionally, you yourself seem to be “subjectively select one definition in preference to others” when you use the term “fallacious” (more later).
OK, we’ll see later
moving finger said:
Thus we agree your definition is not a “foregone conclsuion”, it is your subjective preference.
Tisthammerw said:
My definition is a “foregone conclusion” in that this is what I mean when I use the term “understanding.”
Your definition is subjective in the sense that it is chosen by you, but may not be chosen by everyone else as the “preferred” definition of understanding
Tisthammerw said:
If my definition is a subjective preference, then so is yours.
Yes, of course it is, I never suggested otherwise
Tisthammerw said:
By the way, what is your definition of understanding? I've asked you this before but you have not answered.
See post #86 of the thread John Searle’s China Room
https://www.physicsforums.com/showthread.php?t=93274&page=6
moving finger said:
I disagree with the premise.
Tisthammerw said:
Given the context of this objection, you seem to disagree with the definitions (e.g. my definition of understanding is considered a “premise”).
I disagree with the premise “consciousness is necessary for understanding”
Tisthammerw said:
But how can you say my definition is false? Tournesol made a good point when he said, “Definitions are not things which are true and false so much as conventional or unusual.”
Please read more carefully. I never said your definition is “false”. I said I do not agree with your definition. Are you perhaps suggesting that everyone must agree with every definition, no matter how silly the definition might be?
Tisthammerw said:
In what sense is my definition “wrong”?
I never said it is wrong. Again you are misquoting or misreading. Where in any of my posts have I said that your definition is wrong?
Your definition is your opinion – since it is a matter of opinion it cannot be “false” and it cannot be “wrong” – but also it does not make it “correct” or “right” – and that does not mean that it is necessarily the only possible definition, nor that I have to agree with it!
Tisthammerw said:
This is what I mean when I use the term understanding.
Yes, I understand that. It’s not what I mean.
Tisthammerw said:
So it is perfectly right, and the definition really doesn't sound very unusual (unless you can explain yourself here).
I never said it wasn’t “right”. Again, please do not misquote me, it doesn’t help. I have said that I do not AGREE WITH your definition, I have NEVER said that your definition is false or wrong or not right.
Tisthammerw said:
Now granted it may be “wrong” in the sense that it is not what you mean when you use the term “understanding.” But so what?
I never said it was wrong – so I have no idea what you are trying to get at here.
Tisthammerw said:
Your definition probably isn't the same as mine either, so your definition is also “wrong” in the sense that other people mean something different when they use the term (e.g. me).
Are you now suggesting my definition is “wrong”?
Tisthammerw said:
Do we agree that computers cannot understand in the sense that I mean when I use the term? That (given the model of a complex set of instructions manipulating input etc.) computers cannot perceive the meaning of words, and they cannot be aware of what the words mean?
Given your definition of understanding, it logically follows that a non-conscious agent is unable to understand. Does that make you happy?
Problem is, I do not agree with your definition.
Tisthammerw said:
The “argument” I’m referring to here is about computers being able to understand, not about “understanding requires consciousness.” And in this context you haven’t really answered my question. So please answer it.
The argument you are using assumes the premise that understanding requires consciousness. With this premise, it logically follows that a non-conscious agent is unable to understand. Does that make you happy?
Problem is, I do not agree with your definition or premise.
moving finger said:
But your argument is fallacious.
Tisthammerw said:
It is an example of circulus in demonstrando, which results in a fallacious argument
If you don’t believe me PLEASE go read up about circulus in demonstrando! Have you done so?
Tisthammerw said:
You need to define here what you mean by “fallacious,” since analytic statements are not generally considered fallacious in logic (usually they're considered the opposite).
There you go with confusing statements and arguments again. I am not saying that any statement is fallacious, I am saying that the argument is fallacious.
Are you suggesting that there is no such thing as a fallacious argument?
Tisthammerw said:
You yourself are guilty of subjectively selecting one definition in preference to others,
Sure I am, I never suggested otherwise. But then I am not the one trying to claim that I can simply use my definition of understanding to “prove” anything about understanding.
Tisthammerw said:
Here is my “argument” regarding “understanding requires consciousness.”
The first premise is the definition of understanding I'll be using:
* The man actually knows what the words mean, i.e. that he perceives the meaning of the words, or to put it another way, that he is aware of the truth of what the words mean.
The second premise is the definition of consciousness I’ll be using:
* Consciousness is the state of being characterized by sensation, perception, thought, awareness, etc. By the definition in question, if an entity has any of these characteristics the entity possesses consciousness.
My conclusion: understanding requires consciousness (in the sense that I am using when I use the terms).
OK, but this conclusion is CONTAINED in your premises (understanding = aware of = is conscious). Thus it is circulus in demonstrando.
I can equally well define understanding (and I have in the China Room thread) such that it does NOT require consciousness, and arrive at a very different conclusion.
Thus, what we conclude depends on how we define understanding. Why should I accept your conclusion over any other conclusion?
Tisthammerw said:
Note that the premises are true: these are the definitions that I am using; this is what I mean when I use the terms.
The premises are
assumed true by you. The premises are not true “to MF” – because MF’s definition of understanding is different to yours.
Tisthammerw said:
You may mean something different when you use the terms, but that doesn’t change the veracity of my premises.
Thank you. Since I have different premises, I can dispute your premises.
moving finger said:
It’s like arguing “President Kennedy was an excellent speech giver because he delivered exceptional speeches.”
Tisthammerw said:
No, it is nothing like that. The remark about President Kennedy is not an analytic statement. Mine is, as is the statement “all bachelors are unmarried.”
The remark about Kennedy is an argument, not a statement (did you notice that “because” in there?). It contains a premise, an inference, and a conclusion.
moving finger said:
If you don’t believe me PLEASE go read up about circulus in demonstrando!
Tisthammerw said:
I know what circular reasoning is. I also know that this can’t be applied to claim that analytic statements are fallacious.
Here you go again. Confusing statements with arguments. I am not claiming your statement is fallacious, I am claiming your argument is fallacious.
Did you read up about fallacious arguments?
Tisthammerw said:
Otherwise all analytic statements and all of mathematics are fallacious. Surely that is a high price to pay to undercut my argument.
And again. What part of “a statement is not necessarily the same as an argument” do you not understand? I have never claimed that any statement in this thread is “fallacious” – but you have used fallacious arguments.
Tisthammerw said:
“Understanding requires consciousness” is also an analytic statement, just as “all bachelors are unmarried” is.
Yes, these are statements, and I am NOT saying they are fallacious.
But try to construct a circular argument using them, and you then create a fallacious argument. By definition.
Tisthammerw said:
Well, your the one who called my analytic statement an argument (or at least phrased it as such)
Where did I do that?
Tisthammerw said:
and it is true that analytic statements can be phrased as arguments as I’ve illustrated above.
Statements can be used in the construction of an argument, but by definition an argument contains premises, inferences and conclusion (which a statement need not contain).
“Understanding requires consciousness” is a statement, not an argument.
“all bachelors are unmarried” is a statement, not an argument.
Using such statements, we can construct arguments :
Premise : “Understanding requires consciousness”
Inference and conclusion : “Understanding is not possible without consciousness”
The full argument is then “Understanding is not possible without consciousness BECAUSE understanding requires consciousness” (which is circular)
Or
Premise : “A bachelor is an unmarried man”
Inference and conclusion : “All bachelors are unmarried”
The full argument is then “All bachelors are unmarried BECAUSE a bachelor is an unmarried man” (which is again circular)
moving finger said:
And what if the premises are untrue?
Tisthammerw said:
Only because you choose to define them as true. I could equally well choose to define them as untrue. Which one of us (according to you) is then “right”?
Tisthammerw said:
In any case, it is unclear why you disagree with the conclusion I’ve been talking about (if you really do disagree with it). Why is it unclear why you disagree with the conclusion (regarding whether computers can understand in the sense that I am using the term)?
Why do I disagree with your conclusion?
Because, as I have pointed out countless times already, I disagree with your definition of understanding.
Tisthammerw said:
Because none of what you said is a reason to disagree with the conclusion.
With respect, what part of “I disagree with your definition of understanding” (which I have pointed out many times) do you not understand?
Tisthammerw said:
My question: is it the case that computers cannot understand in the sense that I am using the term? Simply saying, “I don't mean the same thing you do when I say ‘understanding’” doesn't really answer my question at all. So please answer it.
MF declares to all the world the following statement to be logically true “Understanding as defined by Tisthammerw is not possible in a non-conscious agent”
Does that make you happy?
Problem is, I do not agree with Tisthammerw’s definition of understanding, therefore we conclude nothing of any value from any of this.
With respect
MF