• What is the true nature of the self?
    Like you, I too do not have a religion.Truth Seeker

    The Christian doctrines might have all the answers you are seeking for. Would you not be interested in reading about them?
  • What is the true nature of the self?
    I am just aware of the possibility that my perceived reality could be a simulation or hallucination or dream or illusion. It does not mean that I am convinced this is the case. If I were convinced, I would have said that I am convinced.Truth Seeker

    What are the evidences for the possibilities that you perceived? What makes you not convinced?
  • Are there primitive, unanalyzable concepts?
    You just unknowingly contradicted yourself. "Over the boundary" is the idea that there are two things in space (at least conceptually) and one is beyond the "boundary" of the other.Bob Ross

    There was no contradiction in "boundary", apart from your misunderstanding on it. "Boundary" can be physical as well as mental. Again your inability in understanding the concept stems from your lack of understanding the context in linguistic expression.
  • Does Tarski Undefinability apply to HOL ?
    Natural language cannot be accurately evaluated until it is translated into some totally precise form. An expression that is both a statement and a question cannot be properly evaluated by any Boolean True(L, x) predicate.PL Olcott

    If you say, natural language must be translated into some totally precise form (I take it to axiomatic or formal language.), then questioning sentences can be translated into declarative or descriptive form, which can make them truth bearers.

    All linguistic expressions are usually interpreted into the hidden or suggestive meanings in practical conversations. For example, if you say "Are you a non-native English speaker?", to mean polite way of saying "You must have flunked your English in school.", or "What time is it now?" to suggest, "It is time to prepare some dinner. I am bloody hungry the now." ... etc.
  • Does Tarski Undefinability apply to HOL ?
    I agree.PL Olcott
    :ok:

    Not when the entire notion of undecidability depends on these things. In that case we use your first quote as the basis of True(x). From this we derive False(x) ≡ True(¬x) and by this process the whole notion of undecidability utterly ceases to exist.PL Olcott
    In "This sentence is false", whether "is false" or "is true" referred to the subject of the sentence "The sentence" or the whole sentence "This sentence is false" was obscure. Would this be part of the undecidability? Or is it for something else? If for something else, then can you give a few example of the undecidability?
  • Are there primitive, unanalyzable concepts?
    The idiom "it is beyond me" cannot be made sense of, conceptually, without the idea of space.Bob Ross

    It is easy enough to understand this, when one tries to describe "it is beyond me" without using spatially-loaded terms like "beyond": they can't. It loses meaning.Bob Ross

    I cannot imagine anyone relating the idea of space with the word or concept "beyond". It is just an idiom of the linguistic expression which we use habitually to mean over the boundary of something. The something can be physical or mental depending on the context.
  • What is the true nature of the self?
    This is demonstrated quite well by the multiply by zero effect. You are always safer saying a thing is unlikely than you are to say it is impossible.Chet Hawkins

    Not making sense at all. "It is unlikely that" sounds you are lacking confidence on what you are saying, or just being evasive. "It is impossible that" sounds far more declarative and certain of what you are saying.
  • What is the true nature of the self?
    I disagree. No matter how implausible something is, it is nowhere near the same thing as saying something is objectively impossible. That again partakes of a dangerous misunderstanding of what perfection is. Perfectly impossible is probably just that, as in do not talk about it at all because (re-read this sentence until you get it).Chet Hawkins

    "It is possible that " is based on guessing, illusion, unfounded optimisms of low probability of the cases manifesting in reality. "It is impossible that " is based the empirical experience on the cases backed by the highest probability of something not happening in reality.

    They are at the opposite end of the scale in the statements. The point was that "It is impossible that" has far more plausibility than "It is possible that".
  • Are there primitive, unanalyzable concepts?
    Do you think there is some physical space in your imagination or around your understanding? I don't get it.
  • Are there primitive, unanalyzable concepts?
    Hmmm I see what you are saying now, but I don't agree with you. "Beyond" in the example of "It is beyond imagination" has nothing to do with the concept of space. It is just the way people use the word in the context.
  • Does Tarski Undefinability apply to HOL ?
    If we ask people is this sentence true: "What time is it?" the smartest ones will say type mismatch error. Those that have less insight will simply be confused.PL Olcott

    What time is it? can be true or false depending on what was the criteria of the truth.
    If the criteria of truth was whether someone asked the question or not, and someone asked the question, then it was true that the question was asked.

    Also it can be inferred and reasoned that the person who asked the question didn't know the time. If the criteria of truth was, if there was anyone who didn't know the time, then it was true that the questioner didn't know the time at the time of asking the question.

    If you didn't have the criteria of truth, then you wouldn't have the information regarding true or false on the question, which sounds obvious then you don't know what the context of the question was about, and you had no knowledge of what the criteria of truth of the expression was.

    Often the smartest sounding folks can be the dumbest. You have to learn to think differently from others. If you sound the same as the others on these issues, then it wouldn't prove anything apart from that you have spent all your life browsing the internet. If you think differently and come up with different ideas, you may get told that you have a problem in logic by the crowds, but you know that you are thinking with your own mind, not just parroting or agreeing and yearning to be accepted to the group of the crowds.
  • Does Tarski Undefinability apply to HOL ?
    Basically I am saying that self-contradictory expressions such as the epistemological antinomies that Gödel refers to are not truth bearers (neither true nor false) thus must be excluded from formal systems and never any part of any formal proof.PL Olcott

    Every truth or falsity must be derived from some facts in the world or the known axioms which are self evidently true. The paradox starts with the obscure sentence whose truth falsity value no one knows where or what it was derived from. Therefore there is no point for you progressing into the If then arguments or inferencing. That is my point.
  • Does Tarski Undefinability apply to HOL ?
    "This sentence is false."

    If it is false, then it is true.
    If it is true, then it is false.

    The If parts need reference (under what ground it is false or true) to claim it is either false or true.
    There is no indication of what the reference for presuming it is false or true.
    Hence the arguments are invalid.
  • Does Tarski Undefinability apply to HOL ?
    An expression of language that is both a question and a statement would also have
    to be rejected until it is translated into one or the other.
    PL Olcott
    But people use the expression all the time in daily ordinary communications. Why reject?

    The sentence: "Did you lie?"
    is not a truth bearer thus would be rejected by a correct Truth Predicate.
    PL Olcott
    It wasn't "Did you lie?" we were talking about. It was "You lied, didn't you?" That was the original sentence. It cannot be chopped into two sentences. It is one sentence, which is both declarative and questioning form. It means, you lied, and it is true.

    "Isn't it a beautiful day?" Another example saying that it is true that it is a beautiful day, but in questioning form.
  • Are there primitive, unanalyzable concepts?
    “it is beyond me” refers to something which is spatially separate from yourself; so, no, this is not an example of a different meaning of ‘beyond’ that is aspatial.Bob Ross

    From your post, it appears that you might not be a native speaker of English language actually. When you said "It is beyond me", it sounds like "It is behind me in space." literally, but it actually means, you are "unable to understand". "Beyond imagination" would mean "unable to imagine". It has nothing to do with physical space in this context.

    "Beyond" would only indicate physical space, if you were talking about a placement of a physical object in your sentence.

    See my point? Even a simple word, "beyond" has different meanings depending on the context, and how you use it.
  • What is the true nature of the self?
    No, I am not a Hindu. I am an agnostic atheist materialist monist.Truth Seeker

    For an agnostic atheist materialist monist, having all the
    simulation/hallucination/dream/illusionTruth Seeker
    sounds like one's claim that she is a vegetarian, but loves eating beef, pork, chicken, lamb, and enjoys BBQ. :grin:
  • What is the true nature of the self?
    What do you mean by "So the OP is not the actual case."?Truth Seeker
    It means the OP is under some sort of suppositional or imaginary scenario rather than based on the fact. When you say "It is possible that", it must have some degree of plausibility with the factual evidence for being real life cases. Without it, "It is impossible that" has the same plausibility too.

    I did answer the second question by editing my initial answer as I had initially forgotten to answer the second question.Truth Seeker
    Not too worry.

    Do you have a religion?Truth Seeker
    If religion is a belief system, then no. No religion is my religion.
  • What is the true nature of the self?
    I suppose, theoretically, I could have my brain removed and put in a jar that keeps it alive, and is wired to sensory apparatus so I could still perceive what's near me. My guess is I would still be conscious, and still myself. My brain is where my consciousness lies. I can lose any number of body parts, and still be my self.Patterner

    Removing the brain from the body would make them both die immediately. Medically, scientifically and realistically it is unimaginable. Brain can only function properly in the body intact from the birth of the agent, and then naturally having been nurtured by the parents, growing experiencing and interacting with the real world and other members in the society.

    The body without a brain is a corpse, a brain without the body is just a biological organ. There have been no cases of brain transplanting in human history, and it is doubtful if it would ever be possible.
  • What is the true nature of the self?
    I didn't say it was actually the case.Truth Seeker

    I see. So the OP is not the actual case. You have been talking the whole lot under a simulation/hallucination/dream/illusion. Got you. Ok, please carry on. :wink:
  • What is the true nature of the self?
    Ok fair enough. Two questions.

    1. I was not asking you to test the simulation/hallucination/dream/illusion hypothesis. But I was asking you to provide the evidence that your claim is true and real (not guessing and not imagination). That is totally different issue. Would you say so?

    2. Are you a Hindu? Because your reply seem to be concretely based on the Hinduism in its principles.
  • What is the true nature of the self?
    I disagree. I could be a disembodied soul experiencing the simulation or hallucination or dream or illusion that I am in a human body, in a universe where there are other humans and other species.Truth Seeker

    Can you prove that is the case with some evidence? Or is it just your guessing or imagination?
  • What is the true nature of the self?
    It's possible that my body, the Earth, the universe, and all the other living things including you, are all part of a simulation or a hallucination or dream or illusion that I am experiencing.Truth Seeker

    For you to have been experiencing a simulation, hallucination, dream or illusion, you still need the physical body. No one can have all those experiences without having a biological body and brain. Therefore your reply is not making sense. Would you agree?
  • Does Tarski Undefinability apply to HOL ?
    The statement: (a) "You lied." and the question: (b) Did you lie? When we break it down to its constituent parts (b) is still not a truth bearer.PL Olcott

    I am not sure if you are allowed to modify the given example sentence under the process of breakdown.
    If it is allowed, then virtually all questions can be truth bearers.

    For instance, "What time is it now?"
    One could modify it into "It is true that she asked what time it is now.", hence one can say it is true.

    "How are you doing?" - one can modify it again - "It is true that she asked him how he was doing." Therefore "How are you dong?" is a truth bearer.

    Are modifications, inferences and breakdowns on the original sentence allowed for TF values?
  • Does Tarski Undefinability apply to HOL ?
    questions cannot be {truth bearers} is known by everyone that knows what {truth bearers} are.PL Olcott

    Your statement here sounds nonsense. Some questions can be for true or false. For example, "You lied, didn't you?" This means you lied, and it is true. It is also to mean you should be aware of the fact that you lied.
  • What is the true nature of the self?
    We are not our body, but we appear to be embodied. I agree about the mind dying when the body dies.Truth Seeker

    What do you mean by "we appear to be embodied"? Can you imagine yourself existing without your body?
  • What is the true nature of the self?
    What is the true nature of the self?Truth Seeker

    Isn't one's physical body the true nature of the self? The moment the body dies, mind also dies truly and eternally.
  • What Might an Afterlife be Like?
    Come to think of it, Afterlife sounds life keeps continuing after life ceased. Shouldn't it be called "Afterdeath"? :chin:
  • Are there primitive, unanalyzable concepts?
    You missed the point: my linguistic expression of 'beyond' space is incoherent. 'Beyond' refers to something in space.Bob Ross

    Your keep parroting "You missed the point." in most messages you write wouldn't help you on understanding.

    "Beyond" can mean other things too depending on the context. For example, "It is beyond me." - it does't mean something in space.

    If your reader didn't understand what you wrote, then it is likely that your writing was not grammatically correct or it was out of context.
  • Does Tarski Undefinability apply to HOL ?
    Gödel Incompleteness can only be implemented in systems that implement Boolean True(L, x) incorrectly. It cannot exist in systems where True(L, x) means that x is provable from L and False(L, x) means ~x is provable from L and for everything else x is simply untrue in L.

    This same reasoning also conquers Tarski Undefinability.
    When Tarski anchors his undefinability in the Liar Paradox:
    PL Olcott

    As I said before, will say again. The whole confusion with the paradox and undefinability have been originated from the single narrow perspective seeing the problems in propositional logic, which only allows a proposition must be either True or False.

    If you think about the real world situations and objects, there are cases where things are neutral i.e. neither true nor false such as Number 0. And there are the real world cases where things are both True and False, read on QM or some Metaphysical topics.

    If you open up the perspective wide and accept all these possibilities in the real world, it is quite normal for some cases to be either True or False, neither True nor False, or both True and False. If you apply FOL and HOL into your program languages bearing that point in your mind, and design the programs to deal with the particular cases in the real world examples, they deal all the case quite fine (Quine).
  • Does Tarski Undefinability apply to HOL ?
    No that it not it. He used the term {synonymous} 98 times.PL Olcott
    Really? In which book or article did he do that? I have his Mathematical Logic, Method of Logic, Elementary Logic and The Significance of New Logic, total 4 books. But cannot recall seeing it.

    He did not understand that the term {bachelor} is simply assigned the semantic meaning of {unmarried + male + adult}.PL Olcott
    Bachelor is a rather simple term. There are many other words in English which are more abstract to define. Try to define "Self", "Soul" and "Existence". Let's see if analytic truths can define them without contradiction or obscurity.
  • Does Tarski Undefinability apply to HOL ?
    A person with a 50 million IQ that cannot understand that the term {bachelor} is assigned the semantic meaning of {unmarried + male + adult} is ridiculously stupid about this one point.PL Olcott

    I think Quine did understand what bachelor meant. But his point was that a word can mean different things, the meanings of words can change through time and culture, and for a word to convey clear meanings, it needs the context in the expressions in grammatically correct sentence reflecting the reality situations.

    It sounds naive to say that a word means just the simple definitions in a bracket in tautological form, and that is the only truth in all cases under the sun.
  • Does Tarski Undefinability apply to HOL ?
    Quine objected to true on the basis of meaning trying to get away with saying there is no such thing as meaning. The stupid nitwit could not even begin to understand that bachelors are not married.PL Olcott

    Quine was not a stupid. He was very academic and famous. He wrote many Logic and Philosophy books. I have some Quine books.

    Bachelors can mean different things. Bachelor is also "a person who holds a first degree from a university or other academic institution" - Oxford Dictionary

    Hence a woman can be a bachelor, so could a man married many times. I am sure there are surnames called "Bachelor", hence some married old folk could be a Bachelor, Mr Bachelor, or if for a woman, Ms Bachelor. They are all B(b)achelors.
  • Are there primitive, unanalyzable concepts?
    For example, we cannot properly express how a non-spatial entity relates to space in english; but this is just a linguistic limitation. I can only say "a non-spatial entity would exist 'beyond' what is in space", but the concept of a non-spatial entity's relation to space as 'beyond' it is perfectly sensible albeit linguistically nonsensical.Bob Ross

    Yeah, it is better I am not clumped with Banno in a thread. From his comment, it is obvious Banno seems to be still in huff or under some sort of psychological trauma from my comments on his Logic in the past. All I said was I didn't agree with him.

    Anyway I will make my point short. I can see your point in your last post. But let me say this to you to make the counterfactual point to your point. If you didn't explain your point on the non-spatial objects concepts as clearly as you did, in the grammatical form of standard language, I wouldn't have a clue what you were trying to mean.

    A non-spatial entity that exists 'beyond' what is in space cannot be captured by human perception anyway. It can only be described and expressed in logically coherent statements. Concepts get formed via the descriptions using the language. It is a part of language. As you say, some languages don't have certain concepts, but it is not because language in general is unable to form the concepts. It is because no speakers of the language have not tried to form the concepts yet in the language.
  • Does Tarski Undefinability apply to HOL ?
    The key most important thing about Prolog is that Gödel's incompleteness can not be implemented in Prolog.PL Olcott

    It can be implemented in C or Java in modified form with abstraction and generalisation. It cannot be implemented because you are seeing it in the propositional logic rather than predicate or first-order logic.
  • Does Tarski Undefinability apply to HOL ?
    That set of facts that comprise the actual model of the real world is the basis.
    This includes common sense and also details that almost everyone does not know.
    PL Olcott

    But your example "cows don't eat house bricks" is neither a fact nor common sense. It is just an irrelevant daft statement, which is based on senseless reasoning. :)
  • Does Tarski Undefinability apply to HOL ?
    The actual model of the world is the basis. Facts not opinions.PL Olcott

    No one was talking about opinions here apart from yourself. Isn't it a typical case of the strawman?
  • Are there primitive, unanalyzable concepts?
    Again, you are confusing language with concepts. The dictionary doesn't define concepts, it defines words (in a particular language).Bob Ross

    You are misunderstanding concepts as if they are some separate entity from language. Concepts, words, ideas and notions are part of language. Their meanings can only be understood fully in the use of language in some context.
  • Does Tarski Undefinability apply to HOL ?

    I got this book as well. It just arrived. It seems Prolog is a great logic program language which is built on FOL and HOL. An ideal PL for AI applications.