Wikipedia has banned its editors from using AI to create articles, @404mediaco reports. @emanuelmaiberg talked to the Wikipedia editor who proposed the guideline about why.
Wikipedia has banned its editors from using AI to create articles, @404mediaco reports. @emanuelmaiberg talked to the Wikipedia editor who proposed the guideline about why.
@GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia
"for every troll who edits an article" - Professor Rick Norwood isn't a troll https://www.researchgate.net/profile/Rick-Norwood and yet his Maths corrections keep getting backed out by admins. Welcome to why I post my Maths facts on Mastodon, where no-one can back them out https://dotnet.social/@SmartmanApps/110968910722113903
@GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia
"theyβre constantly being fact-checked by tons of experts" - and getting backed out again by admins. See previous comment. None of the Maths pages ever cite any Maths textbooks, despite the fact there are many available for free on the Internet Archive
"many policies bypass all that" - including bypassing fact-checking π so either the policies don't work, or aren't followed. Either way Wikipedia has a facts problem
@GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister
"the policies do work, and are followed" - clearly not, given pages like https://en.wikipedia.org/wiki/0.999... exist
"IMO tend to be far more authoritative" - I see you haven't read any of their blog posts then, where they can't even get order of operations right (spoiler alert: they don't teach it at university, it's taught in high school, which they've long since left - high school textbooks are the references to use)
@SmartmanApps @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister ...you can see right here where it cites two textbooks explaining exactly why the article is correct
https://books.google.com/books?id=jWgPAQAAMAAJ
https://archive.org/details/mathematicalanal02edtomm/page/n3/mode/2up

Algebra is abstract mathematics - let us make no bones about it - yet it is also applied mathematics in its best and purest form. It is not abstraction for its own sake, but abstraction for the sake of efficiency, power and insight. Algebra emerged from the struggle to solve concrete, physical problems in geometry, and succeeded after 2000 years of failure by other forms of mathematics. It did this by exposing the mathematical structure of geometry, and by providing the tools to analyse it. This is typical of the way algebra is applied; it is the best and purest form of application because it reveals the simplest and most universal mathematical structures. The present book aims to foster a proper appreciation of algebra by showing abstraction at work on concrete problems, the classical problems of construction by straightedge and compass. These problems originated in the time of Euclid, when geometry and number theory were paramount, and were not solved until th the 19 century, with the advent of abstract algebra. As we now know, alge bra brings about a unification of geometry, number theory and indeed most branches of mathematics. This is not really surprising when one has a historical understanding of the subject, which I also hope to impart.
@GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister
""you can see right here where it cites two textbooks" - nope. I can see quite clearly they are NOT Maths textbooks, as I said
"explaining exactly why the article is correct" - now go read about limits and/or decimal representations in Maths textbooks and you'll discover why it's wrong. Here's a free head-start explaining why 1/3 isn't actually equal to 0.333... and is only an approximation (now multiply by 3)
@fuchsi @GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister
"you have to make the line for "period" over the 3 of 0,3" - yes, and is an approximation of 1/3, since it's literally impossible to have an exact decimal representation of 1/3 in base 10, since 3 isn't a factor of 10, as per the textbook
@fuchsi @GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister
"but it's 3 until infinity. That limes should do that, no?" - I'm not sure what you mean. Even at 3 to infinity, it's still only an approximation of 1/3, so 0.9 to infinity is only an approximation of 1. ALL non-terminating decimals are only approximations, again as per the textbook. Only terminating decimals are exactly equal to a fraction, such as 0.25 is exactly equal to 1/4, as per the textbook
@fuchsi @GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister
In other words, no matter how many steps you do your long division to, you're still left with remainder 1 - that remainder 1 literally never disappears, even at preceded by infinite zeroes. It's because 3 isn't a factor of 10, and we're doing it in base ten. In base 3 you can exactly represent 1/3 - it's 0.1 - in base ten you can't. The same thing happens in the other direction converting back.

Attached: 1 image 1/6 This #MathsMonday I want to cover a new storm I've seen brewing, but first I want to go over again the motivation for these #Maths posts... On one hand it's to provide me (and you!) with things that can be linked to, to save myself (and you) from repeating myself, but peeling back the onion on that really it's about preventing #Math #bullying, for sadly I have seen people who bully others into believing the wrong #Mathematics answer. i.e. not about who's right, but stopping the #bullies!...
@fuchsi @GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister
"You don't have the remaining 1. That also gets divided by 3" - which then also gives a remainder of 1, divide by 3 again, another remainder of 1, ad infinitum. That's EXACTLY how infinity works - a never-disappearing remainder of 1, infinitely repeating 3's. Again, every non-terminating decimal is only an approximation, only terminating decimals are exactly equal to fractions, as per Maths textbooks
@fuchsi @GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister
"I am not sure that's how it works" - That's exactly how it works. Sit down with pen and paper and start doing long (or short) division. 3 doesn't go into 1, add a zero. 3 goes into 10 3 times with 1 remainder, repeat ad infinitum. Again, every non-terminating decimal is only an approximation due to a never-disappearing remainder, due to not being a factor of 10
@SmartmanApps @GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister ah sorry. It's limit in English.
This is for calculations with infinite numbers. Because you don't have a last digit. Per definition.
@fuchsi @GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister
"ah sorry. It's limit in English" - yes, the limit is literally the number it can never reach, hence why it's called the LIMIT. The infinite sum is uncalculable, so we use the limit in it's place, since that can be calculated. This is discussed in almost every textbook that covers limits
"Per definition" - get your definitions from Maths textbooks, not Wikipedia - that's my whole point to begin with!
@SmartmanApps @GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister I learned that stuff 20 years ago in university. And here it's called Grenzwert (threshold or boundary value) or Limes (like that Roman wall).
And yes we used textbooks.
But you can make an analysis to see to which value the limit converges. And there are some interesting things that math does with infinity. And yes, you can calculate with that.
@fuchsi @GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister
"which value the limit converges" - converges but never reaches, the defining feature of an asymptote
"you can calculate with that" - hence why it's used in place of the infinite sum, which can't be calculated, being infinite
"doesn't Wikipedia quote textbooks" - none that I've ever seen. It's certainly not hard to find any which define the limit as being unreachable, thus 0.999... never reaches 1
@fuchsi @GroupNebula563 @wikipedia @LucasWerkmeister
This person is a crank and will not understand, but I do encourage you to push back on his pollution of mastodon.
As you can see, he just tried to pass off a page about finite decimal expansions as if it were about infinite ones (which are over the page). I actually don't think this is dishonesty; I think he genuinely has such a poor grasp of mathematics beyond the level of high school that he doesn't understand why he's wrong. It's fascinating to observe.
@GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister
"an avid contributor to the project and seems to quite enjoy it" - yep, that's him. Now go look at the Maths talk pages where his corrections kept getting backed out
"which are probably the ones getting reverted that you're talking about" - nope! Probably more than a decade ago now
"are the same person" - and yet, the corrections were still correct, and were still backed out
@GroupNebula563 @TechDesk @404mediaco @emanuelmaiberg @wikipedia @LucasWerkmeister
"you completely steer the debate in another direction" - my point has always been that corrections by experts get backed out. Go ahead and see all the Rick Norwood corrections that got backed out
"if you really must waste time arguing about this further" - I'm not arguing - I'm stating facts. It's all there in the Talk pages!
...and blocked me. Now guess what happens when Rick Norwood posts a correction! π