14

I think Inductively-Therefore I Know

Posted by khalling 9 years, 3 months ago to Philosophy
94 comments | Share | Flag

one of the most important questions in philosophy is can we know anything? and if so, how do we gain reliable knowledge?
SOURCE URL: http://www.thesavvystreet.com/i-think-inductively-therefore-i-know/


Add Comment

FORMATTING HELP

All Comments Hide marked as read Mark all as read

  • Posted by ObjectiveAnalyst 9 years, 3 months ago
    Hello khalling,

    Ah... Epistemology! A good read and much shorter than Rand's "Introduction to Objectivist Epistemology." My copy (ITOE) is the expanded second edition. I found the question and answer format quite engaging.
    Our senses are our source of knowledge. Axiom: "Existence exists." "... the act of grasping that statement implies two corollary axioms: that something exists which one perceives and that one exists possessing consciousness, consciousness being the faculty of perceiving that which exists." AR
    The "stolen concept"
    "When modern philosophers declare that axioms are a matter of arbitrary choice, and proceed to choose complex, derivative concepts as the alleged axioms of their alleged reasoning, one can observe that their statements imply and depend on “existence,” “consciousness,” “identity,” which they profess to negate, but which are smuggled into their arguments in the form of unacknowledged, “stolen” concepts." AR

    One cannot be taken seriously if they proclaim that one cannot know reality/anything without using reality/something to argue the point, thus defeating their own argument...

    Happy New Year,
    O.A.
    Reply | Mark as read | Best of... | Permalink  
    • Posted by ewv 9 years, 3 months ago
      The question and answer format is due to the fact that the extensive appendix in the 2nd edition is an edited and reorganized transcript of about 1/3 of the many hours of questions and answers in her Epistemology Workshop, held for a small group of professionals over several days around 1970.

      But that was just the appendix. Without the systematic presentation in the first part of the book as a base (originally the entire 1st edition based on a sequence of articles in her journal The Objectivist), coherent questions and answers would not have been possible. The second edition also includes Leonard Peikoff's systematic article on the analytic synthetic dichotomy and its variants (also from The Objectivist), which is also necessary for a proper understanding.

      But that is primarily about concepts, which are fundamental, but not all there is to the subject. Other complementary systematic elaborations are :

      1. The first part of Leonard Peikoff's comprehensive book Objectivism: The Philosophy of Ayn Rand, which systematically covers the nature of knowledge in accordance with the axioms of existence, identity and consciousness; and the nature of perception plus more on propositions, logic, and the principle of the objective versus the intrinsic and subjective. This comprehensive treatment supersedes several recorded lecture series he gave on Ayn Rand's philosophy.

      2. Leonard Peikoff's two recorded lecture course series from the 1970s on Logic and on Induction (not to be equated with his more recent lectures on induction that are his own theory claimed to be an application of Ayn Rand's philosophy -- with some interesting elements but not correct in some major ways).

      3. Leonard Peikoff's 1970s lecture series on the history of western philosophy, which describes the major issues of philosophy and how the various philosophers from the Greeks through the 20th century addressed them, and Ayn Rand's answers in her own philosophy. Much of that is necessarily epistemology. It shows how ethics and political philosophy depend on epistemology and provides an important context for understanding Ayn Rand's philosophy and its significance.

      Any one of these is better and much more than the article posted above, and all are necessary to understand the significance and meaning of what that article is referring to. It is good that someone is defending knowledge and induction in general terms, but much more is needed to explain it, and that can't be done in a single article for the general public.

      Reply | Mark as read | Parent | Best of... | Permalink  
      • Posted by ObjectiveAnalyst 9 years, 3 months ago
        Hello ewv,
        I have read Peikoff's book, Objectivism: The Philosophy of Ayn Rand. It was, without a doubt, an in depth examination and worthy read no matter one's opinion of every precept Piekoff has offered. There are, as you know, other notable "objectivist's" that hold disagreements on some points of his interpretations, as well as his own (sometimes questionable, as you have mentioned) extrapolations.

        I quite agree, this article is nothing more than an interesting introduction... the basics.
        I would hope it impetus for deeper investigation for those truly interested, particularly in the field of epistemology... a field of great import for any philosopher. It is after all what philosophy is all about at its most basic level. How do we know, what we know? is essential in knowing.

        Respectfully,
        O.A.
        Reply | Mark as read | Parent | Best of... | Permalink  
        • Posted by ewv 9 years, 3 months ago
          Leonard Peikoff's lectures in the 1970s were endorsed by Ayn Rand. They aren't his own interpretations differing from her. In fact he once said (on his radio show) that Ayn Rand was responsible for the Objectivist ideas in those lectures. His OPAR book was of course written after Ayn Rand died, but that book was based on the earlier lectures and articles, and was intended to represent her thoughts, not his own additions or interpretations. There are some points where his success in that can be questioned, but it's nothing like his later works expounding his own ideas and what he believes are applications of Ayn Rand's philosophy.

          Ayn Rand also agreed that epistemology is fundamental, yet we have seen so little written about it since then.
          Reply | Mark as read | Parent | Best of... | Permalink  
      • Posted by 9 years, 3 months ago
        Savvy Street is not about presenting academic analysis. It is about getting readers to think more deeply about the world and to be an asset to your flourishing life. One would expect and encourage readers to delve into these areas of study when they can.
        Reply | Mark as read | Parent | Best of... | Permalink  
      • Posted by 9 years, 3 months ago
        ewv,
        To your second point, would you be willing to to expound on your comments in a separate post?
        second, I don't believe I saw you contribute to the self ownership post. I would appreciate your feedback.
        Reply | Mark as read | Parent | Best of... | Permalink  
        • Posted by ewv 9 years, 3 months ago
          You mean #2 on the lectures on logic? I'm not sure what you mean.

          I saw the self-ownership thread but haven't had time to post about it.
          Reply | Mark as read | Parent | Best of... | Permalink  
          • Posted by 9 years, 3 months ago
            yes. Your assertions that LP made some logical errors. Interested to know about that and why
            Reply | Mark as read | Parent | Best of... | Permalink  
            • Posted by ewv 9 years, 3 months ago
              He claims to have solved the "problem of induction" in the philosophy of science (and more broadly). He released his theory in recorded lectures (which may no longer be available) and in condensed form as the first chapter in Dave Harriman's otherwise generally very good book, The Logical Leap.

              He calls this his own "application" of Ayn Rand's epistemology, but he clearly regards it as much more, calling it "Objectivism's" solution to the problem, and when John McCaskey questioned some particular use of the history of science in Dave Harriman's book, Leonard Peikoff accused him of "attacking the philosophy".

              The theory is based on two main ideas. This description, which I am trying to condense, presupposes that you know Ayn Rand's epistemology and what the general "problem of induction" is.

              The first idea claims that there are "first order generalizations" which are known automatically to be true, analogous to perception preceding conception. First order generalizations are said to be general propositions containing only first order concepts. But there are no general propositions consisting only of first order concepts, as Ayn Rand describes the hierarchy of concepts (concepts of actions and attributes must be at least second order; you can't utter a statement at all with only first order concepts). And the idea of infallible first order generalizations doesn't work under the most cursory examination. A later attempt (by Harry Binswanger, who endorsed the theory) to patch this up with a new supposed "ïmplicit first order" after the misuse of "first order concept" was pointed out, did not help.

              The second main idea is that generalization in propositions is no more than the generalization inherent in the process of forming concepts. Ayn Rand had called generalization in concept formation an inductive process, but contrasted it with induction in propositions, and explicitly rejected the idea that they are the same process (this was all at the workshops). This was in the context of a discussion of examples of the problem of induction in science, but it if you think about the difference between what is being generalized when you form a concept with contextual definitions versus a general assertion claiming to be contextually universal, you see that they are very different and require different kinds of knowledge and validation. General propositions are much harder. It has been done many times successfully of course, but there is no epistemological principle explaining fully what is necessary.

              So what Leonard Peikoff calls an application of Ayn Rand's epistemology is not only embarrassingly inadequate, it misconstrued some of Ayn Rand's basic concepts in epistemology, misused the terminology, and contradicted her earlier explicit rejection of one of the main ideas decades before.

              I don't write this to attack Leonard Peikoff. He is an honest, intelligent, and knowledgeable man with great integrity and dedication, but has shown some poor judgment in his later years, especially in areas he lacks first hand knowledge. It doesn't detract from his previous superb expositions of Ayn Rand's philosophy and its relation to the history of western philosophy, mostly based on work he did when she was alive. It's important to read and evaluate everything independently and not take anything for granted.
              Reply | Mark as read | Parent | Best of... | Permalink  
              • Posted by dbhalling 9 years, 3 months ago
                We have to be able to question Rand and other Objectivists without being called heretics I think Peikoff and other o's are just dead wrong when they argue against self ownership for instance.

                I don't think any of this formulation is in Rand's books. I have not read David Harriman's book and the fighting within the O community is part of why.

                I have looked at the "problem of induction" and I think it is what I call the problem of "perfect knowledge." Knowledge is always contextual, sort of like the domain of an equation in math. The problem with the perfect knowledge argument against induction is that in order to have perfect knowledge you have to know everything and you can't know anything until you know everything under this argument. That is clearly not how knowledge works.
                Reply | Mark as read | Parent | Best of... | Permalink  
                • Posted by ewv 9 years, 3 months ago
                  Understanding that knowledge is contextual and that knowledge through scientific general principles does not mean omniscience is crucial, but it doesn't solve the problem of the epistemological principles of the induction. The problem of induction is often misconstrued to mean showing that it induction is possible at all, but that isn't what is meant here.

                  Ayn Rand knew that the "problem of induction" had not been solved, and said so. She discussed it at the workshops and described what was involved and the kind of knowledge of both science and philosophy that would be required to solve it. You can find some of that in the appendix to IOE. (That is also where you will find discussions of the important ideas of first level and higher level concepts in a hierarchy, and their significance.)

                  Leonard Peikoff's lectures on induction in his 1970s course on logic is also very good on the nature of the problem, how to frame it correctly, and some classical insights on it such as Mill's methods.

                  Dave Harriman's book doesn't include any kind of personal disputes. The fact that some people are involved in personal squabbles over it is not a reason for you to not read it. Most of it is very good, interesting, and informative in an objective philosophical analysis of the history of science, even though it doesn't accomplish the more sweeping claims made for it.
                  Reply | Mark as read | Parent | Best of... | Permalink  
                  • Posted by dbhalling 9 years, 3 months ago
                    According to wikipedia the problem of induction is:

                    The problem of induction is the philosophical question of whether inductive reasoning leads to knowledge understood in the classic philosophical sense,[1] since it focuses on the lack of justification for either:
                    Generalizing about the properties of a class of objects based on some number of observations of particular instances of that class (for example, the inference that "all swans we have seen are white, and therefore all swans are white," before the discovery of black swans) or
                    Presupposing that a sequence of events in the future will occur as it always has in the past (for example, that the laws of physics will hold as they have always been observed to hold). Hume called this the principle of uniformity of nature.[2]

                    First, all knowledge is inductive originally unless you are a mystic and principles are handed down from god or otherwise revealed. If the person rejects mystical revelation then they must argue against induction using language which implies that he believe he has knowledge and that the receiver has knowledge, which has to based on inductive reasoning.

                    The problem of induction is that since you do not know every fact you cannot know that the next fact will conform to the universal (All swans are white), which means that you have to know everything to know any universals according to this line of argument.

                    Humans deal with this in two ways. 1) In math we create a definition, such as for a line, and then we never care if this concept is consistent with the real world, although it was and has to be inspired by the real world, or 2) In science we deal with this by understanding domains. It is perfectly valid to say the world is flat if you are building a small house. BTW when we find that scientific knowledge does not extend to a new domain, this is a chance to expand our knowledge, not a failure as so many populist philosopher's suggest.
                    Reply | Mark as read | Parent | Best of... | Permalink  
                    • Posted by ewv 9 years, 3 months ago
                      What in that is from Wikipedia and what did you write?

                      Without getting very far into it or with much detail, the notion that induction is based on generalizing with nothing but some number of repeated observations, such as the "All swans are white" example, is the fallacy of induction by simple enumeration. The emphasis on Hume further builds into the discussion an anti-conceptual epistemology that led to his infamous skepticism as the culmination of British Empiricism, including denial of causality and a quandry of how induction could ever be possible at all, rather than how to do it.

                      Causality is the principle of identity applied to action. To be is to be something. To be something is to be something in particular. It has a specific identity and behaves accordingly. That is the basis of the "regularity" that makes science possible.

                      Science, not philosophy, discovers the relevant identities, actions, and causes, in terms of correct concepts classified and defined by the relevant essentials. The problem of induction is the epistemology of how this is done in general, not whether it can be done, which it has been throughout science for centuries. It is analogous to the epistemology of how, in general, we form concepts.

                      The last paragraph in the post above follows the common false division of knowledge into two classes, knowledge that is about reality which is said to be uncertain, and certain knowledge which is not about reality. See the first appendix in IOE on the Analytic Synthetic Dichotomy in its various forms.

                      The concept of a line is not just "inspired" by the real world, it is a concept _of_ lines in the real world (geometry originated from surveying in the ancient world). Knowledge about which someone doesn't care if it's consistent with the real world is pathological, not knowledge. Knowlege _is_ knowledge about the world.

                      Mathematical knowledge is based on perception of instances of numbers of units, points, lines, etc., which gives rise to the most basic mathematical concepts of number and geometry. But those are already higher levels of abstractions. They are not about any particular entity or kinds of entities, but do pertain to measurement in the real world no matter what the entities are.

                      Mathematics in its fundamental, elementary form is directly about how to formulate and relate measurements. It is a science of _method_, not a science of physical objects. In that sense it is "about the world" in that it refers to and pertains to real measurements in the real world, but it is not "about the world" the way physical sciences like physics are.

                      When you form concepts you are always omitting measurements of essential characteristics in common between the units referred to, maintaining the specific measurements only implicitly (such as Ayn Rand's example of the concept of length, which refers to any length, with the particular measurements omitted in the abstraction of what they have in common).

                      That a line has "no width" means that the width is small enough to be neglected as irrelevant, not that it literally has no width. It has some width; what particular width is irrelevant, but it essential for being a line that whatever it is it has to be negligibly small in comparison with the length. The geometry of lines does not, therefore, need not and does not deal with their widths. Likewise for sizes of points, straightness of lines, curvature of a flat surface, etc.

                      You don't say for a small house that the earth is flat, that would be misapplying concepts out of context, but you do say that the terrain of the lot is flat, i.e., a plane, if it's not on a hill, etc. because the curvature of the earth and other local features are irrelevantly small.

                      If the thickness of a line matters, then you have to use several of them to define a shape with another dimension of measurement. When applying a concept like 'plane' you must ensure that in the particular context the curvature is in fact negligible or your use of the geometry won't work. Likewise for features of the local surface. Then you invoke more complex geometry and work with elevations, slopes, etc. to the extent you have to to get it all right and accurately depict the surface and its relation to the house, but it won't include the curvature of the earth.

                      So the idea of "omitted measurements" in the process of generalizing through concept formation has its complement in applying the concepts, especially in science and engineering where the quantifiable discovery of what measurements are essential and must be explicitly included, and which are irrelevant, and the accurate calculation or estimation of their sizes to some specific degree of precision, are crucial.

                      Much of applied mathematics is determining what measurements are relevant and assessing the accuracy of calculations to ensure that all relevant precision is included for whatever accuracy is required throughout chains of calculations.

                      "Error analysis" in this sense became a major aspect of numerical analysis particularly with the advent of computers doing elaborate calculations, but it had also already been important with electric calculating machines and even the slide rule before that.

                      So we do very much care about whether or not our concepts and methods in geometry are consistent with the real world, and what features and their measurements are necessary to ensure that we are using mathematical methods that are sufficient to apply to reality in any particular problem or class of problems.

                      The "pure" mathematics dealing only with relations between already established concepts, like proofs in Euclidean Geometry, always has essential measurements implicit, but they are not typically dealt with explicitly. That they are implicit does not mean that "mathematics doesn't care", what we care about depends on the context. Each facet of reality referred to by concepts is always part of the meaning of the concept, and we may or may not need to focus on it depending on the purpose.

                      When formulating and applying theories in the physical sciences, the context dictates what characteristics are relevant and essential, but now extended to kinds of entities, physical characteristics and phenomena, not just numerical magnitudes and relations. That is how conceptual theories are generalizations established and used in a certain context and is what is meant by the "contextual nature of knowledge", which makes generalization possible.

                      But you have to be careful that when formulating and validating generalizations you understand essential characteristics and causes, thinking with appropriate conceptual classifications in terms of essentials. You can't just make an assertion and then claim that the first contradictory fact observed the next day doesn't matter because it is out of the context. The contextual nature of knowledge is not a get out of jail free card for erroneous theories.

                      Much of science is devoted to discovering and better understanding the "limits" and extent of the proper context to increasing precision in terms of essentials. It is all related to the "problem of induction", which in turn depends on having, but is not the same as, proper principles of concept formation

                      Doing this properly results in the expansion of knowledge through new discoveries for different ranges of measurement, more precision, or new phenomena, in the way you cited. It makes science an ever expanding base of systematic knowledge in terms of principles of ever increasing levels of abstraction rather than a series or exploded fallacies in the way it is often falsely regarded -- Hume's anti-conceptual skepticism is part of the reason why.
                      Reply | Mark as read | Parent | Best of... | Permalink  
                      • Posted by dbhalling 9 years, 3 months ago
                        Wikipedia entry Problem of Induction.

                        This is a youtube by Oxford's philosophy department on point https://www.youtube.com/watch?v=ET9oRKEw....

                        I think the key point you made above is that Hume's formulation ignores the law of identity, which is something I noticed in watching the video.

                        I was talking about so-called pure math and I stand by the idea that pure math is worried about proofs that are not checked by empirical evidence. It is purely concerned with logic but not evidence.

                        I think it would be a mistake to overly formalize the exact process of how knowledge is gained. For instance, serendipity in discovering the structure of benzene or inventing post-it notes does not invalidate reason. Both have to be checked by logic and empirical facts.
                        Reply | Mark as read | Parent | Best of... | Permalink  
  • Posted by Danno 9 years, 3 months ago
    Inductive Reasoning is very dangerous. There is limited circumstances in math where inductive reasoning works like proving a power series equation. The term "Black Swan" came along because humans thought there were only white swans until back swans were found in Australia. The interesting thing about Deductive Reasoning is that by changing an assumption, such as no lines are parallel, creates new theories that match Nature much better.
    Reply | Mark as read | Best of... | Permalink  
    • Posted by dbhalling 9 years, 3 months ago
      Inductive reasoning is the only way to gain knowledge. Humans are not given concepts to engage in deductive reasoning, they have to create them. Don't confuse knowledge with omniscience. For instance, if I am building a small house I do not need to consider spherical geometry. Occasionally we will find that our knowledge is incomplete this is not dangerous it is a chance to increase our knowledge.
      Reply | Mark as read | Parent | Best of... | Permalink  
      • Posted by Danno 9 years, 3 months ago
        First we must agree on definitions. New knowledge can then be gained by Law of Contradiction or directly. In LoC you assume an axiom to be true then derive a contradiction with existing body of knowledge. If so, your assumption is false. This can be used to better define core axioms.
        Reply | Mark as read | Parent | Best of... | Permalink  
        • Posted by dbhalling 9 years, 3 months ago
          Here are some Rand quotes on point

          Reason is the faculty that identifies and integrates the material provided by man’s senses.

          “The Objectivist Ethics,”
          The Virtue of Selfishness, 20


          Man’s senses are his only direct cognitive contact with reality and, therefore, his only source of information. Without sensory evidence, there can be no concepts; without concepts, there can be no language; without language, there can be no knowledge and no science.

          “Kant Versus Sullivan,”
          Philosophy: Who Needs It, 90
          Reply | Mark as read | Parent | Best of... | Permalink  
        • Posted by dbhalling 9 years, 3 months ago
          All knowledge starts with your senses. You cannot gain any knowledge that does not start from your senses, so everything including the law of contradiction starts with inductive reasoning.
          Reply | Mark as read | Parent | Best of... | Permalink  
          • Posted by Danno 9 years, 3 months ago
            I would argue that senses (including brain) are measurement instruments (good read http://www.amazon.com/gp/product/0307378...). The author of the article does not seem to know about LoC when he made statement all deductive thinking is 'if A then B' type. Math number theory was a playground of wealthy mathematicians and produced prime number theory. It had no application at all at the time and was based on counting numbers, most basic. Today we use the theory to encrypt internet traffic (public/private key, value by $ of commerce). Most of the misery in human history (e.g. Stalin, Hitler, Rwanda) were caused by psychos using inductive reasoning not qualified by skepticism.
            Reply | Mark as read | Parent | Best of... | Permalink  
            • Posted by dbhalling 9 years, 3 months ago
              ????Most of the misery in human history (e.g. Stalin, Hitler, Rwanda) were caused by psychos using inductive reasoning not qualified by skepticism?????

              None of these people were interested in reason, inductive or deductive.
              Reply | Mark as read | Parent | Best of... | Permalink  
              • Posted by Danno 9 years, 3 months ago
                Unschooled reasoning is filed under inductive thinking. Making broad generalizations unsupported by fact and experiment is part of inductive thinking. I am not saying inductive reasoning cannot be used for good. Just emphasizing how dangerous it can be on the macro (bad Jews) and micro (dogma hurting relationships due to no care of other person's needs). Maybe Ayn Rand dealt personally with some of this issues.
                Reply | Mark as read | Parent | Best of... | Permalink  
                • Posted by dbhalling 9 years, 3 months ago
                  Inductive reasoning - reasoning from detailed facts to general principles. All reasoning starts inductively. The examples you give are not about reasoning at all, they are about faith.
                  Reply | Mark as read | Parent | Best of... | Permalink  
                  • Posted by Danno 9 years, 3 months ago
                    OK. I have an advanced degree in pure math. Math is not faith. Agree to disagree. See http://www.netplaces.com/philosophy/anal...
                    Reply | Mark as read | Parent | Best of... | Permalink  
                    • Posted by dbhalling 9 years, 3 months ago
                      The examples you gave were of horrible dictators, which has nothing to do with math. These dictators were not interested in reason, inductive or deductive.

                      Even math requires as its beginning inductive reasoning from the senses. Only if you have inductively determined what a line is can you form a concept of a line that can then be used for deductive reasoning.
                      Reply | Mark as read | Parent | Best of... | Permalink  
                      • Posted by Danno 9 years, 3 months ago
                        If we look at Mandelbrot's work, it is clear a "line" does not exist in Nature. Molecules binded together oriented in one direction is all. Then decay. Assuming parallel lines caused much bad intellectual work. If you read the book I referenced, you will better understand my argument that senses including the brain are measurement instruments.
                        Reply | Mark as read | Parent | Best of... | Permalink  
                        • Posted by dbhalling 9 years, 3 months ago
                          Of course a line exists in nature. Any two points form a line. To say lines do not exists is to deny concepts exist. It is like say people do not exist because they are all different. But to make that statement you have to assume concepts.
                          Reply | Mark as read | Parent | Best of... | Permalink  
                          • Posted by ewv 9 years, 3 months ago
                            Danno is not going to understand that any more than anything else you explained.

                            Two points specify the direction of a line but do not "form" it: The concept of a line requires abstracting out the thickness as negligible and irrelevant, and that is what he seems to be missing. There is no such thing as a physical line with zero thickness. That does not mean there are no lines. Mandelbrot has nothing to do with it, and Mandelbrot's analysis and examples could not even be discussed without mathematical concepts of lines, angles, etc.

                            But that is typical of the way Danno tosses around bromides with no understanding as he jumps from one irrelevancy to another. (Look at how he ignored everything you said as he flitted off to one disconnected slogan after another.)

                            What is more interesting and important is how common it is for many of those educated in formal mathematics to become defiantly complete rationalists with no depth of understanding beyond the process of symbolic manipulations, all in the name of "logic" and "precision" in their floating abstractions. That is easily avoidable, but there is nothing else in their education to properly explain it either. This is why it is hopelessly impossible to discuss philosophy and mathematics with someone who does not already understand both the mathematics and Ayn Rand's epistemology.
                            Reply | Mark as read | Parent | Best of... | Permalink  
                        • Comment deleted.
                          • Posted by dbhalling 9 years, 3 months ago
                            It is not clever to deny concepts. And the fact that you are using words means that at the same time you are using concepts and denying that they can exist. Kinda of pathetic.
                            Reply | Mark as read | Parent | Best of... | Permalink  
                            • Posted by ewv 9 years, 3 months ago
                              He doesn't know what concepts are, let alone Ayn Rand's formulation of the nature of universals, or how to apply it to the concept 'line', or how we would ever come up with the concept of a line if there were no lines from which to abstract the concept. That isn't uncommon and is understandable given the general state of philosophical understanding in math or anywhere else; the loutish belligerence and lack of desire or ability to discuss it is another matter.
                              Reply | Mark as read | Parent | Best of... | Permalink  
    • Posted by Watcher55 9 years, 3 months ago
      "Inductive reasoning" in maths is actually a form of deductive reasoning, which rather confuses things. The article as it is addresses your other concerns.
      Reply | Mark as read | Parent | Best of... | Permalink  
      • Posted by ewv 9 years, 3 months ago
        He (Danno) doesn't understand conceptual thought and its relation to reality at all, let alone induction, and it would take a lot more than that article to fix it.

        A good book to read on induction in mathematics is the very well written and highly readable George Polya's Mathematics and Plausible Reasoning: Induction and Analogy in Mathematics.and Patterns of Plausible Inference (2 vols).

        Inductive reasoning in mathematics _is_ induction and there are many forms of it, typically employed to establish or discover patterns. Strict deduction is used within axiomatic systems, after fundamental concepts and principles have already been established inductively, to keep the hierarchy of the relationships straight and as an aid in avoiding subtle errors and unjustified leaps. Symbolic deductive proofs, in particular, become a form of 'calculation' themselves. But cognition precedes calculation. and cognition requires concepts, which are a form of generalization established in advance.

        The "principle of mathematical induction" that you are referring to is one method of generalization, incorporated as a principle in Peano's axiomatic system for the positive integers. Poincaré described it as an infinite sequence of deductions, based on the infinite sequence of numbers in Peano's system, but there is much more to it than that. It employs deduction as a means to establish the _conceptual_ nature of the principle (relating _any_ 'n' and 'n+1') that leads to the generalization from the first particular instance (typically 0 or 1) in an open ended sequence.

        It is not possible to perform a 'completed infinity' of deductions. The generalization is possible only with a conceptual understanding of a principle relating _any_ successive terms in the sequence. The open-ended nature of concepts makes it possible to understand the principle behind Poincaré's idea of an infinite sequence of deductions. (There is also a so-called "strong form" of "the principle of mathematical induction", but it does not change the nature of how it all works conceptually.)

        Deduction is commonly used within complex inductive reasoning to establish particular elements within the analysis process and such use of deduction does not make the final generalization not a generalization, i.e., not inductive.
        Reply | Mark as read | Parent | Best of... | Permalink  
  • Posted by Herb7734 9 years, 3 months ago
    In order to survive, all you really need to know is that thinking is man's method of survival. All
    it takes is the same as the old joke -- "Q: How do you get to Carnegie hall? Ans. Practice, practice." The rest is merely esoteric devised so that wordsmiths and will have something to talk about.
    .
    Reply | Mark as read | Best of... | Permalink  
  • Posted by $ MikeMarotta 9 years, 3 months ago
    Thanks, also. It is funny in an non-funny way, that animals seem to have enough knowledge but we are stuck in Plato's Cave. No one claims that bears are ignorant of proper cub rearing or incapable of finding berries or are hunting salmon to extinction. It is pretty wintery in most of the northern hemisphere right now - 45F and rainy in Austin - and here we are in heated homes conversing across the continent via our computers. Somehow, bears seem not to have discovered any of that…
    Reply | Mark as read | Best of... | Permalink  
    • Posted by Watcher55 9 years, 3 months ago
      You will notice that the article draws a parallel between instinct and animal-level learning and inductive reasoning. Both work, and for the same reasons; however inductive reasoning is far superior in how far it can take you: literally beyond our own solar system.
      Reply | Mark as read | Parent | Best of... | Permalink  
    • Comment hidden by post owner or admin, or due to low comment or member score. View Comment
    • Posted by Robbie53024 9 years, 3 months ago
      Nor do bears sit in traffic jams, pay taxes, or send armies to kill other dens. Perhaps they really are the more superior species?
      Reply | Mark as read | Parent | Best of... | Permalink  
      • Comment deleted.
        • Posted by 9 years, 3 months ago
          what is right and what is wrong? how is your position not evil?
          "There are two sides to every issue: one side is right and the other is wrong, but the middle is always evil. The man who is wrong still retains some respect for truth, if only by accepting the responsibility of choice. But the man in the middle is the knave who blanks out the truth in order to pretend that no choice or values exist, who is willing to sit out the course of any battle, willing to cash in on the blood of the innocent or to crawl on his belly to the guilty, who dispenses justice by condemning both the robber and the robbed to jail, who solves conflicts by ordering the thinker and the fool to meet each other halfway. In any compromise between food and poison, it is only death that can win. In any compromise between good and evil, it is only evil that can profit. In that transfusion of blood which drains the good to feed the evil, the compromiser is the transmitting rubber tube . . .

          When men reduce their virtues to the approximate, then evil acquires the force of an absolute, when loyalty to an unyielding purpose is dropped by the virtuous, it’s picked up by scoundrels—and you get the indecent spectacle of a cringing, bargaining, traitorous good and a self-righteously uncompromising evil." Galt's Speech
          Reply | Mark as read | Parent | Best of... | Permalink  
        • Comment hidden by post owner or admin, or due to low comment or member score. View Comment
        • Posted by Robbie53024 9 years, 3 months ago
          Sometimes yes, sometimes no.
          Reply | Mark as read | Parent | Best of... | Permalink  
          • Posted by plusaf 9 years, 3 months ago
            Examples? Suggestions?
            Thanks!
            Reply | Mark as read | Parent | Best of... | Permalink  
            • Comment hidden by post owner or admin, or due to low comment or member score. View Comment
            • Posted by Robbie53024 9 years, 3 months ago
              Well, that was mostly sarcasm, but it also has some truth to it. There are some things where trade-offs are appropriate, some others where they aren't.

              I like your earlier comment that decisions have costs. For example, in the auto innovation thread every safety innovation comes at some cost. Some of those costs customers aren't willing to pay. The only conclusion seeming to be that the increased marginal safety is not worth the increased cost. Clearly that is a situation where trade-off is appropriate.

              On the other hand, there are issues of morality. Here there should be less inclination for "trade-off" and should be more absolute. For example, I believe that murder is immoral, but that must be qualified. Killing an individual guilty of a heinous crime I would not call murder, rather a killing based on justice. Individuals killed in a war (whether soldiers or not) are not murdered, they are killed, etc. These are not trade-offs, they are definitional.
              Reply | Mark as read | Parent | Best of... | Permalink  
              • Posted by plusaf 9 years, 3 months ago
                Thank you, Robbie! My "law" or 'observation' is even more fundamental than that.. it asserts that EVERYTHING involves 'tradeoffs'... choosing anything instead of something else means accepting the risks and benefits of the choice as well as forgoing the risks and potential benefits of ALL other alternative choices.

                Choosing to mandate safety features has costs and benefits, as does allowing the market's choices to drive such availability.

                What's usually not part of the decision on which choice to make or implement is any kind of really thorough analysis and publication OF the benefits AND costs of Either or Any of the Alternatives.

                An almost trivial measurement might be the selling price adder for implementing the New Feature compared to any kind of forecast of the number of injuries or deaths possibly prevented by the implementation.

                Unfortunately, that immediately becomes a 'moral discussion' about the 'value of a life or a limb,' which is pretty much logically impossible to factually determine without some layer of value judgment not quantifiable by rational logic.

                As for heinous crimes and capital punishment, I maintain that defining the 'line' that, when crossed, describes 'heinous' is a moral and NOT a 'logical' demarcation, so the ice gets very thin under that decision point very quickly.

                Or, if ending one person's life under XYZ circumstances 'differs' from ending a life under other circumstances, well... that's a moral decision, too... and not based on logic either.

                But deciding that, if a person commits some kind of activity which is so repugnant to society or a culture that the punishment is clearly advertised to be "we're going to find you and when we do, we're going to put you somewhere where you can't do that again to members of our society," well... that's Truth in Advertising, and the Free Market in Heinous Deeds will determine whether or not anyone (or 'manyone') will CHOOSE to risk that tradeoff!

                For me it fits together well.
                If, for you or someone else, that doesn't make sense, 'agreeing to disagree' also does not advance the discussion to any agreement, either.

                :)
                Reply | Mark as read | Parent | Best of... | Permalink  
                • Posted by ewv 9 years, 3 months ago
                  This kind (Robbie and Plusaf) of a-philosophical utilitarian Pragmatism often promoted by conservatives has nothing to do with Ayn Rand's epistemology or any other part of her philosophy depicted in and which made possible Atlas Shrugged, and it explains nothing about the nature of knowledge, which is the topic of the thread.
                  Reply | Mark as read | Parent | Best of... | Permalink  
                  • Comment deleted.
                    • Posted by ewv 9 years, 3 months ago
                      Plusaf's post is non-responsive. It doesn't matter what he calls himself. He is promoting a-philosophical utilitarian Pragmatism often promoted by conservatives. It is also promoted by the small number of utilitarian "libertarians" and others. It has nothing to do with Ayn Rand, who was not "all about" "how people learn things and make decisions" and was not anything like his "law" of everything is a "tradeoff". If he doesn't understand what that is based on he should read Ayn Rand.
                      Reply | Mark as read | Parent | Best of... | Permalink  
                    • Posted by 9 years, 3 months ago
                      "The whole World is a Trade-off"
                      This is one-dimensional thinking. Knowledge is not a trade. If we look at it from an economic perspective alone (one dimension) we might say you take time from other actions to learn. However, that is not foundation. It's a metaphysical point? The only context for which this is essential would be in economics. This makes no sense in epistemology. Since you have not been clear how this statement applies within the context of this post, I assume you are saying there are no absolutes epistemologically or morally. so on an Ayn Rand site, you are going to run up against some heavy criticism, since in Objectivism Law of Non-Contradiction two contradictory statements cannot both be true simultaneously and in the same way. Your statement of trades suggest that nothing is wrong or right, just a series of trades. You no longer have to adhere to the premise that A is A or that Reason is no more powerful to gaining knowledge than mysticism.
                      Reply | Mark as read | Parent | Best of... | Permalink  
  • Posted by LetsShrug 9 years, 3 months ago
    What is....is.
    Reply | Mark as read | Best of... | Permalink  
    • Posted by 9 years, 3 months ago
      yes, but there needs to be a method of inquiry -tests-so you can categorize "what is." Definitions and categories. But also interesting is understanding that knowledge is contextual. You do not have to have complete knowledge in order to use inductive reasoning successfully.
      Reply | Mark as read | Parent | Best of... | Permalink  
      • Posted by $ MikeMarotta 9 years, 3 months ago
        We never have _complete_ knowledge of anything, but we obviously have _successful_ knowledge of astoundingly much. I think that the call for complete knowledge is a variant of the forensic fallacy of "the call for perfection." We had the telegraph, telephone, and radio, and Edison lit up cities, all before Thompson identified the electron.
        Reply | Mark as read | Parent | Best of... | Permalink  
        • Posted by $ jlc 9 years, 3 months ago
          We have successive iterations of 'rules of thumb', I think. As the frame of our observation changes, the former rules become inapplicable and we have to come up with new ones. (Not 'incorrect', mind you, but not applicable to the new framework.)

          Jan
          Reply | Mark as read | Parent | Best of... | Permalink  
          • Posted by 9 years, 3 months ago
            I do think we are resistant to change and established practices. on the other hand, hair-brained hypotheses are pushed and agenda-ized including in areas which aren't politically sexy like modern physics.
            Reply | Mark as read | Parent | Best of... | Permalink  
            • Posted by $ jlc 9 years, 3 months ago
              Ha. Yes. Matt Ridley's Dec article was titled, "Policy Based Evidence Making". We do have to watch about our tendency to make the facts fit the current political theory.

              What I was thinking of was something quite different, though: I was thinking about the way Newton's colliding billiard balls - and the resultant 3 Laws of Motion - fail when the billiard balls are moving at near-light velocity...or when they are very very tiny. Quantum mechanics and Relativity have not negated the 3 Laws of Motion, but they have framed it in a set of parameters. Newton did not even know those parameters existed.

              Jan
              Reply | Mark as read | Parent | Best of... | Permalink  
      • Posted by LetsShrug 9 years, 3 months ago
        I'm not all that smart, but there is such a thing as making things more complicated then they need to be.
        Reply | Mark as read | Parent | Best of... | Permalink  
        • Posted by $ MikeMarotta 9 years, 3 months ago
          Like you, "I'm not all that smart" but I do not know anyone who thinks that they are smart enough - and certainly not "too smart" with extraneous intelligence they wish they could do without…

          I think that everything is complicated, but that success comes from reducing the essentials - an analogy from alchemy, actually.

          Your caveat that things not be made more complicated than they need to be addresses the fallacious claims of the anti-mind philosophers. Language allows us to state nonsense: "Mathematics is green." But so what? Who has not put three eyes on Mr. Potatohead? Over-complicating him does not help him much, which I think is in line with your warning.
          Reply | Mark as read | Parent | Best of... | Permalink  
          • Posted by LetsShrug 9 years, 3 months ago
            I have never put three eyes on Mr potatohead. I did put a nose where an ear should go. No matter where I put his features it was still reality tho, because that's where I put them.
            Reply | Mark as read | Parent | Best of... | Permalink  
            • Posted by 9 years, 3 months ago
              yes, reality is the foundation for everything whether people choose to recognize the axiom or not. You will always come back to that logic. I always used Apollo 13 (the movie) to explain to my kids the transition from A is A to epistemology. The astronaut who stays behind who has to figure out how to re-power up the LEM.(I might not have that right) and the box of "stuff" thrown on the desk in front of the engineers. (insert: because A is A), and the engineers had to apply how they know what they knew. They used their inductive/deductive reasoning (logic) to define, categorize, calculate...A is A is the starting point, not the end point. One day in TSHTF, it may be very important to put an eye in Mr. Potato Head's ear hole...as a matter of fact, Hank Rangar might steal that :)
              Reply | Mark as read | Parent | Best of... | Permalink  
              • Posted by LetsShrug 9 years, 3 months ago
                Ah, very good. Makes perfect sense... and that's where I get hung up. The need to explain (over explain... not you, Robin) how reality makes sense. The duct tape and tubes (or whatever) was the obvious choice to fix problem A because it's what they had that they could fashion to best solve the problem at hand. They understood the problem, they gathered materials and formulated a plan, they didn't just throw their hands in the air and hope for a miracle. Omg.. I'm making brain popcorn... Mr potatohead can't talk... I hid his mouth...up on the counter...he can't reach it but he can see it up there, with his eye-nose.
                Reply | Mark as read | Parent | Best of... | Permalink  
                • Posted by 9 years, 3 months ago
                  do not hide the pieces from the littlest's one's brain, which I know you are not. He might be an inventor! yes, this Robin is very different from the dead poet society Robin. But that Robin is also very important to how our generation understands romanticism. Food for our brains. For me, I never believed Mr. Grapenuts that his "food" was the best. but I am no expert on food. I have to gain knowledge and categorize it after I vet it for truth. This is complicated. You may decide to defer to experts who meet your criteria.
                  Reply | Mark as read | Parent | Best of... | Permalink  
        • Posted by 9 years, 3 months ago
          I reject the first part of your statement and ask you to be more specific on the second part. Give examples from the article you find more complicated than they need to be.
          Reply | Mark as read | Parent | Best of... | Permalink  
          • Posted by LetsShrug 9 years, 3 months ago
            You said "yes" in your first reply (which I didn't realize til now, but that will not stop me from needling you about it now that you've voiced rejection)..
            It was my way of saying that it was over my head to follow. It's like popcorn being thrown around in my head reading all that stuff that's supposed to clarify something...and maybe Socrates was a tyranny. Anyway, I like Eud's epistemology explanation better... I always glaze over when the reality debate comes up...why argue over what reality is. It bores me, probably because I can't grasp the idea even. Cuz I'm not that smart. Now, ... bring me a glass of wine and make me laugh.
            Reply | Mark as read | Parent | Best of... | Permalink  

FORMATTING HELP

  • Comment hidden. Undo