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| Tags: help, mathematics, nature, plea |
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#21
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In article ,
"Jem" wrote: wrote in message ... In article , Chan-Ho Suh wrote: In article , Jem wrote: Mathematics (i.e. logical symbol manipulation) can't provide that direction. Your arguments may carry more weight if you had a correct idea of what mathematics is. But clearly you don't. Or he's got a big chip on his shoulder. Dialogue with him will teach lurkers a bit about analytical thinking. If it prevents one person from walking into his/her math class with an attitude that the class is a waste of time, the bits will be worth it. What's needed is some analytical reading. There's no negative implication at all in anything I said. Oh, you're one those. You are the one who used the adjective "aimless" which means without direction or purpose. You are claiming that math has no purpose; I have you one example to counter that assertion. .. The fact that a hammer can't find the nail on its own doesn't mean its a useless implement. Here's a box of Kleenix, kid. /BAH Subtract a hundred and four for e-mail. |
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#22
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In article ,
"Jem" wrote: wrote in message ... In article , "Anon" wrote: wrote in message news ![]() In article k8pkd.5$IZ2.1@lakeread06, "Jem" wrote: snip Regarding my comment - it shouldn't have been too difficult to recognize that people are metaphors for their professions, and the point of the analogy (silly or not) is that standing alone, mathematics is an aimless avocation, which gets its direction for the most part from science. Math, by itself, may be aimless. However, it teaches people how to think well. I don't call anything, that teaches people how to use analytical thinking, aimless. Aimless (lacking direction) isn't the same as pointless (of no value). Any new thing is going to have the attribute of lacking direction. It's only in hindsight that one can determine there was direction. If you start labeling a discipline as aimless, the conclusion will be to not teach it. You might try to view the relationships between science and math as symbiotic rather than parasitic. Your comment implies that math is parasitic to science. Neither would have made published advances without the other. I think you're still reading more into the word "aimless" than is warranted by its definition, I am using the definition of aimless; you are ignoring half of the definition of aimless. I am concluding that you are doing this because you have an attitude problem and are trying to prove you're right. ..and I don't want to get into a semantical argument. You're going to have a semantical argument when you start throwing words around that denote a negative connotation but try to make the claim that you're not trying to denigrate studying math. .. The fact is you can get a Shakespearean sonnet by setting enough monkeys at typewriters for a long enough time, No, you can't. ..but to produce one efficiently requires having some idea of what it is you want to achieve (i.e. direction). Mathematics (i.e. logical symbol manipulation) can't provide that direction. Since when is math a logic symbol manipulation? Computer programming may be this, but math sure as hell isn't. It sounds like you've only taken high school algebra and skipped the plane geometry course. /BAH Subtract a hundred and four for e-mail. |
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#23
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wrote in message ... In article , Chan-Ho Suh wrote: In article , Jem wrote: Mathematics (i.e. logical symbol manipulation) can't provide that direction. Your arguments may carry more weight if you had a correct idea of what mathematics is. But clearly you don't. Or he's got a big chip on his shoulder. Dialogue with him will teach lurkers a bit about analytical thinking. If it prevents one person from walking into his/her math class with an attitude that the class is a waste of time, the bits will be worth it. What's needed is some analytical reading. There's no negative implication at all in anything I said. The fact that a hammer can't find the nail on its own doesn't mean its a useless implement. |
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#24
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wrote in message ... In article , "Jem" wrote: wrote in message ... In article , Chan-Ho Suh wrote: In article , Jem wrote: Mathematics (i.e. logical symbol manipulation) can't provide that direction. Your arguments may carry more weight if you had a correct idea of what mathematics is. But clearly you don't. Or he's got a big chip on his shoulder. Dialogue with him will teach lurkers a bit about analytical thinking. If it prevents one person from walking into his/her math class with an attitude that the class is a waste of time, the bits will be worth it. What's needed is some analytical reading. There's no negative implication at all in anything I said. Oh, you're one those. You are the one who used the adjective "aimless" which means without direction or purpose. You are claiming that math has no purpose; I have you one example to counter that assertion. .. The fact that a hammer can't find the nail on its own doesn't mean its a useless implement. Here's a box of Kleenix, kid. /BAH I told you before I didn't want to get into a semantical argument over this, and I think I made it clear what I meant by the word "aimless", both from the context of my original remark, and from my subsequent clarifications. Keep the Kleenex, kid. |
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#25
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Eugene Shubert:
"jem" wrote in message news:iU3kd.6278$C%4.3904@lakeread04... That's kind of like asserting the superiority of automobile mechanics over those who design and build the cars. Most scientists need to understand math. The division that I'm suggesting is more like the competent verses the incompetent. Who do you think understands logic best, mathematicians or physicists? That is a rather stupid question (and answer, since I'm sure you intended it to be rhetorical). He who understands logic best is he who understands logic best. I have a question that you should be able to answer by pure logic. Do you think it's possible to drill a square hole with a square bit? Tom Roberts is a physicist who denies the logic of my opening post. http://www.everythingimportant.org/v...hp?p=3437#3437 http://groups.google.com/groups?&sel...s13.hou.wt.net Will Twentyman and Gene Ward Smith sound like extraordinarily competent mathematicians. They agree with me. So far, you have validated my hypothesis that you define competent by the ease with which you can misconstrue the comments of someone into agreement where there is none. [...] There really isn't any contest about who is right in elementary logic. In this instance, mathematicians are preeminent over physicists. Only if you are talking about the logic needed to be a mathematician. Pn the other hand, if one is designing an experiment to measure parity violation in nuclear scattering, only an idiot would consider the mathematics department as the most obvious place to find the most logical opinions on how to perform the experiment. |
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#26
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In article ,
"Jem" wrote: wrote in message ... In article , "Jem" wrote: wrote in message ... In article , Chan-Ho Suh wrote: In article , Jem wrote: Mathematics (i.e. logical symbol manipulation) can't provide that direction. Your arguments may carry more weight if you had a correct idea of what mathematics is. But clearly you don't. Or he's got a big chip on his shoulder. Dialogue with him will teach lurkers a bit about analytical thinking. If it prevents one person from walking into his/her math class with an attitude that the class is a waste of time, the bits will be worth it. What's needed is some analytical reading. There's no negative implication at all in anything I said. Oh, you're one those. You are the one who used the adjective "aimless" which means without direction or purpose. You are claiming that math has no purpose; I have you one example to counter that assertion. .. The fact that a hammer can't find the nail on its own doesn't mean its a useless implement. Here's a box of Kleenix, kid. /BAH I told you before I didn't want to get into a semantical argument over this, and I think I made it clear what I meant by the word "aimless", both from the context of my original remark, and from my subsequent clarifications. Yes, you did make it clear. You see no use for learning math and are trying to spread your new religion. Keep the Kleenex, kid. OK. There may be other snot-nosed kids who will use it and learn. /BAH Subtract a hundred and four for e-mail. |
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#27
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#28
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"Bilge" wrote in message
... Eugene Shubert wrote http://groups.google.com/groups?&sel...g. google.com Will Twentyman and Gene Ward Smith sound like extraordinarily competent mathematicians. They agree with me. So far, you have validated my hypothesis that you define competent by the ease with which you can misconstrue the comments of someone into agreement where there is none. This is your condemnation: You are confident that Gene Ward Smith and Will Twentyman failed to answer my opening question. And you believe that you're handling the evidence honestly. "Gene Ward Smith" wrote http://groups.google.com/groups?&sel...g. google.com "Eugene Shubert" wrote http://groups.google.com/groups?&sel...s13.hou.wt.net Suppose you begin a derivation by assigning a clear and undisputed physical meaning to real parameters x, x', T, T', and a real constant u. From that reasonable starting point, I claim it's legitimate to pick a real number 1/c and then define a new quantity v by the equation u=v/sqrt(1 -v^2/c^2). The point is to then write everything in the ensuing derivation in terms of v and not u. I also believe it's legitimate to define, without any justification whatsoever, the function gamma(v) = 1/sqrt(1 - v^2/c^2). There is no requirement to give a physical meaning to any of the above, .... You've defined u as a function of v, for real v with |v| c. You can certainly do that if you choose, ... You are also free to define the function gamma, ... You might also consider the transformation r = c arctanh(v/c), "rapidity", which has nice additivity properties. None of this is physics as yet; ______________ Will Twentyman wrote http://groups.google.com/groups?&sel...feed.slurp.net Eugene Shubert wrote: I have a trivial question concerning mathematics and logic and I would like to receive a resounding answer that is both unanimous and clear from practicing mathematicians and logicians. The cross- posting is for the benefit of the physicists who have read my paper http://www.everythingimportant.org/r...ty/special.pdf and are stumbling over its elementary logic. Here's the logic that the physicists find troubling. Suppose you begin a derivation by assigning a clear and undisputed physical meaning to real parameters x, x', T, T', and a real constant u. From that reasonable starting point, I claim it's legitimate to pick a real number 1/c and then define a new quantity v by the equation u=v/sqrt(1 -v^2/c^2). The point is to then write everything in the ensuing derivation in terms of v and not u. I also believe it's legitimate to define, without any justification whatsoever, the function gamma(v) = 1/sqrt(1 -v^2/c^2). It appears that you are making a definition. That's perfectly ok. Next you have to defend any interpretations you may put on that definition. I suspect they have an objections someplace else. ______________ As you say, you're absolutely certain that you're unaware of any positive confirmations in my favor in the expert testimony of Gene Ward Smith and Will Twentyman. I suppose that means that you also don't recognize any difference between purely positive confirmations if contrasted to the directly opposite, negative denials by Tom Roberts. Look again. Tom Roberts directly contradicts the answers given by Gene Ward Smith and Will Twentyman in his wrangling with me. Here is the pertinent exchange: The quality of a derivation of the equations of SR is usually judged by: 1. the simplicity and physical believability of its assumptions, or lack thereof. and: 2. the generality of those assumptions. Your derivation is seriously lacking in both of those aspects: 1. On page 2 your assumptions for \mu and \gamma are completely unsupported, My official derivation begins on page 4. The assumption that you refer to (page 2), the principle called change of variables, also called substitution, is one of the clearest and most useful mathematical ideas in high school algebra and baby calculus. What's your dispute with intuitively simple fundamentals? What support do I need and why is it an unwarranted physical assumption if I label the function 1/sqrt(1 -v^2/c^2) with the Greek letter gamma? and are not obvious at all -- these are QUITE unusual assumptions, to say the least; why should anybody believe them? Why should anyone believe in the substitution v/c = tanh(theta), which transforms the usual Lorentz transformation to its hyperbolic form? Because that is not an ASSUMPTION, it is a CONCLUSION. There are plenty of derivations of the Lorentz Transformation equations that don't define theta. Take Einstein's tortured derivation for example (Dover, The Principle of Relativity). And try to find a mathematician who isn't going to laugh at you. If theta isn't defined anywhere in a derivation, then you are perfectly free to let theta be anything that pleases you at any step in a derivation. And even if a simple substitution/transformation doesn't please some physicists, it still has every mathematical right to exist. There is no physical assumption in the mathematical substitution u=v/sqrt(1 -v^2/c^2). http://www.everythingimportant.org/v...hp?p=3437#3437 http://www.everythingimportant.org/v...hp?p=3441#3441 Eugene Shubert http://www.everythingimportant.org/r...ty/special.pdf |
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#29
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jem writes:
If you look to the foundations of modern mathematics you find some undefined terms (symbols), and some assumed relationships between those terms (axioms) from which (using logical inference) all of Mathematics arises. That's why it's just symbol pushing, and that's why it's directionless (better word?) - it has absolutely no meaning. How do you arrive at this bizarre conclusion? |
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#30
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| Thread | Thread Starter | Forum | Replies | Last Post |
| The Nature of Mathematics - a plea for help | Eugene Shubert | Physics - General Discussion | 121 | November 16th 04 02:47 PM |
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