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  • Joseph Nebus 2:24 pm on Sunday, 12 July, 2015 Permalink | Reply
    Tags: , , , , reasoning, , , survival   

    Reading the Comics, July 12, 2015: Chuckling At Hart Edition 

    I haven’t had the chance to read the Gocomics.com comics yet today, but I’d had enough strips to bring up anyway. And I might need something to talk about on Tuesday. Two of today’s strips are from the legacy of Johnny Hart. Hart’s last decades at especially B.C., when he most often wrote about his fundamentalist religious views, hurt his reputation and obscured the fact that his comics were really, really funny when they start. His heirs and successors have been doing fairly well at reviving the deliberately anachronistic and lightly satirical edge that made the strips funny to begin with, and one of them’s a perennial around here. The other, Wizard of Id Classics, is literally reprints from the earliest days of the comic strip’s run. That shows the strip when it was earning its place on every comics page everywhere, and made a good case for it.

    Mason Mastroianni, Mick Mastroianni, and Perri Hart’s B.C. (July 8) shows how a compass, without straightedge, can be used to ensure one’s survival. I suppose it’s really only loosely mathematical but I giggled quite a bit.

    Ken Cursoe’s Tiny Sepuku (July 9) talks about luck as being just the result of probability. That’s fair enough. Random chance will produce strings of particularly good, or bad, results. Those strings of results can look so long or impressive that we suppose they have to represent something real. Look to any sport and the argument about whether there are “hot hands” or “clutch performers”. And Maneki-Neko is right that a probability manipulator would help. You can get a string of ten tails in a row on a fair coin, but you’ll get many more if the coin has an eighty percent chance of coming up tails.

    Brant Parker and Johnny Hart’s Wizard of Id Classics (July 9, rerun from July 12, 1965) is a fun bit of volume-guessing and logic. So, yes, I giggled pretty solidly at both B.C. and The Wizard of Id this week.

    Mell Lazarus’s Momma (July 11) identifies “long division” as the first thing a person has to master to be an engineer. I don’t know that this is literally true. It’s certainly true that liking doing arithmetic helps one in a career that depends on calculation, though. But you can be a skilled songwriter without being any good at writing sheet music. I wouldn’t be surprised if there are skilled engineers who are helpless at dividing fourteen into 588.

    In the panel of interest, Loretta says the numbers (presumably the bills) don't add up, but they subtract down fine.

    Bunny Hoest and John Reiner’s Lockhorns for the 12th of July, 2015.

    Bunny Hoest and John Reiner’s Lockhorns (July 12) includes an example of using “adding up” to mean “make sense”. It’s a slight thing. But the same idiom was used last week, in Eric Teitelbaum and Bill Teitelbaum’s Bottomliners. I don’t think Comic Strip Master Command is ordering this punch line yet, but you never know.

    And finally, I do want to try something a tiny bit new, and explicitly invite you-the-readers to say what strip most amused you. Please feel free to comment about your choices, r warn me that I set up the poll wrong. I haven’t tried this before.

  • Joseph Nebus 5:00 pm on Sunday, 21 June, 2015 Permalink | Reply
    Tags: , , , , , reasoning,   

    Reading the Comics, June 21, 2015: Blatantly Padded Edition, Part 2 

    I said yesterday I was padding one mathematics-comics post into two for silly reasons. And I was. But there were enough Sunday comics on point that splitting one entry into two has turned out to be legitimate. Nice how that works out sometimes.

    Mason Mastroianni, Mick Mastroianni, and Perri Hart’s B.C. (June 19) uses mathematics as something to heap upon a person until they yield to your argument. It’s a fallacious way to argue, but it does work. Even at a mathematical conference the terror produced by a screen full of symbols can chase follow-up questions away. On the 21st, they present mathematics as a more obviously useful thing. Well, mathematics with a bit of physics.

    Nate Frakes’s Break Of Day (June 19) is this week’s anthropomorphic algebra joke.

    Life at the quantum level: one subatomic particle suspects the other of being unfaithful because both know he could be in two places at once.

    Niklas Eriksson’s Carpe Diem for the 20th of June, 2015.

    Niklas Eriksson’s Carpe Diem (June 20) is captioned “Life at the Quantum Level”. And it’s built on the idea that quantum particles could be in multiple places at once. Whether something can be in two places at once depends on coming up with a clear idea about what you mean by “thing” and “places” and for that matter “at once”; when you try to pin the ideas down they prove to be slippery. But the mathematics of quantum mechanics is fascinating. It cries out for treating things we would like to know about, such as positions and momentums and energies of particles, as distributions instead of fixed values. That is, we know how likely it is a particle is in some region of space compared to how likely it is somewhere else. In statistical mechanics we resort to this because we want to study so many particles, or so many interactions, that it’s impractical to keep track of them all. In quantum mechanics we need to resort to this because it appears this is just how the world works.

    (It’s even less on point, but Keith Tutt and Daniel Saunders’s Lard’s World Peace Tips for the 21st of June has a bit of riffing on Schrödinger’s Cat.)

    Brian and Ron Boychuk’s Chuckle Brothers (June 20) name-drops algebra as the kind of mathematics kids still living with their parents have trouble with. That’s probably required by the desire to make a joking definition of “aftermath”, so that some specific subject has to be named. And it needs parents to still be watching closely over their kids, something that doesn’t quite fit for college-level classes like Intro to Differential Equations. So algebra, geometry, or trigonometry it must be. I am curious whether algebra reads as the funniest of that set of words, or if it just fits better in the space available. ‘Geometry’ is as long a word as ‘algebra’, but it may not have the same connotation of being an impossibly hard class.

    Little Iodine does badly in arithmetic in class. But she's very good at counting the calories, and the cost, of what her teacher eats.

    Jimmy Hatlo’s Little Iodine for the 18th of April, 1954, and rerun the 18th of June, 2015.

    And from the world of vintage comic strips, Jimmy Hatlo’s Little Iodine (June 21, originally run the 18th of April, 1954) reminds us that anybody can do any amount of arithmetic if it’s something they really want to calculate.

    Jeffrey Caulfield and Alexandre Rouillard’s Mustard and Boloney (June 21) is another strip using the idea of mathematics — and particularly word problems — to signify great intelligence. I suppose it’s easier to recognize the form of a word problem than it is to recognize a good paper on the humanities if you only have two dozen words to show it in.

    Juba’s Viivi and Wagner (June 21) is a timely reminder that while sudokus may be fun logic puzzles, they are ultimately the puzzle you decide to make of them.

  • Joseph Nebus 2:41 pm on Friday, 5 June, 2015 Permalink | Reply
    Tags: Alexander Grothendieck, , authority, deduction, , , , President, , reasoning   

    A Summer 2015 Mathematics A To Z: fallacy 


    Mathematics is built out of arguments. These are normally logical arguments, sequences of things which we say are true. We know they’re true because either they start from something we assume to be true or because they follow from logical deduction from things we assumed were true. Even calculations are a string of arguments. We start out with an expression we’re interested in, and do things which change the way it looks but which we can prove don’t change whether it’s true.

    A fallacy is an argument that isn’t deductively sound. By deductively sound we mean that the premises we start with are true, and the reasoning we follow obeys the rules of deductive logic (omitted for clarity). if we’ve done that, then the conclusion at the end of the reasoning is — and must be — true.

    (More …)

    • Ken Dowell 3:03 pm on Friday, 5 June, 2015 Permalink | Reply

      So is a word that we will be able to utilize liberally as we start to see the various presidential campaign debates.


      • Joseph Nebus 10:52 pm on Friday, 5 June, 2015 Permalink | Reply

        Well, yes, it’ll be a popular word while talking about campaigns (or it will be among circles that like to talk about logical fallacies in popular arguments).

        However, the kind of argument that could be communicated in ordinary speech is almost always going to be fallacious by the standards of deductive logic, just of necessity. It takes an incredible amount of often tedious work to make a deductive-logic argument that’s valid. And to make a valid argument into a sound one requires demonstrating that all one’s premises are true, and for many topics that will be a matter of judgement.

        Being convincing, and compelling, and for that matter right aren’t the same thing as being free of fallacy.


    • In My Cluttered Attic 5:02 pm on Friday, 5 June, 2015 Permalink | Reply

      Well Joseph, I may not know you to be a competent mathematician, but I suspect you to be a more competent one than I. :O)


    • sheldonk2014 5:22 pm on Friday, 5 June, 2015 Permalink | Reply

      I just read some of your post which at times seem really hard on me,but I’m persistent,so after I read it remained me of a definition of art,you know the change if something


      • Joseph Nebus 11:01 pm on Friday, 5 June, 2015 Permalink | Reply

        Indeed? I’m not sure which meaning of art you’re thinking of, but I’d be glad to hear more.


    • citywithoutpeople 7:12 am on Saturday, 6 June, 2015 Permalink | Reply

      Hey, cool post can you give me an example of a fallacy that was found untrue for an interesting reason. The distinction between analytical and contingent propositions noted by Hume’s fork, describes your post also, I like how mathematicians, philosophers and scientists all have different ways of describing the same thing


      • Joseph Nebus 9:18 pm on Tuesday, 9 June, 2015 Permalink | Reply

        Good question and I shall try to find one that’s got a nice, explainable, and interesting history to it.

        Liked by 1 person

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