Onj, to Logic
@Onj@mastodonmusic.social avatar

It's 11 update day, so while I wait excitedly for a whole new version number to drop, as we go from V10 to V11, what better way to pass the time than to copy text I sent to a Logic WhatsApp group and email list into , chuck some music under it and make a silly production out of it? In Logic obviously.

dmm, to ChatGPT
@dmm@mathstodon.xyz avatar

"No, A → B is not equivalent to - B → - A in logic."

Except that the truth table that ChatGPT [1] generated says the opposite. Also, see the law of contraposition [2].

Claude [3] makes the same mistake.

I've had pretty good luck with the chatbots. This is the first thing that I have asked that all of them seem to get wrong.

Interesting.

References

[1] "ChatGPT", https://chat.openai.com

[2] "Contraposition", https://en.wikipedia.org/wiki/Contraposition

[3] "Claude", https://claude.ai

GuitarSith, to apple
@GuitarSith@fosstodon.org avatar

Well, I’m now beyond frustrated with Apple. Was working with Apple Loops in Logic this morning, went to use the search feature, picked a filter and now all the loops are totally gone. I reindexed them, nothing; reinstalled & reindexed them, nothing. Deleted the preference file, rebooted, nothing. Lost all my settings when I deleted the preferences too. So looking like I need to delete anything Logic related for preferences & logs the reinstall Logic. 🤬

KhouryVis, to psychology
@KhouryVis@vis.social avatar

Congratulations to Helia Hosseinpour, Laura Matzen, Kristin Divis, Spencer C. Castro, and @lace for the acceptance of their paper "Examining Limits of Small Multiples: Frame Quantity Impacts Judgments with Line Graphs" to @ieee_tvcg @computersociety ✨✊

Preprint available here:
https://osf.io/preprints/psyarxiv/a6k8z

jake4480, to history
@jake4480@c.im avatar

A great, brain-melting piece that explains how logic may prove that time doesn't exist 🫠 https://theconversation.com/how-logic-alone-may-prove-that-time-doesnt-exist-227817

consequently, to Logic
@consequently@hcommons.social avatar

Coming up in less than 18 hours, our two-day Proofs, Rules and Meanings extravaganza. Sophie, Viviane and Francisca have been working hard to organise a productive two days of logic, and our participants get to enjoy the fruits of their hard work very soon.

https://www.st-andrews.ac.uk/arche/event/workshop-proofs-rules-and-meaning

consequently, to Logic
@consequently@hcommons.social avatar

I think I’m ready for my talk at our two-day proof theory workshop, starting tomorrow: https://consequently.org/presentation/2024/lambda-mu-arche/ — I have a lot to pack in to 25 minutes, so the monster-sized handout contains some of the details I’ll skim over in the talk.

jimdonegan, to mathematics
@jimdonegan@mastodon.scot avatar
gregorni, to programming
@gregorni@fosstodon.org avatar

Hot take:

not, and, or

are much nicer to use and read than

!, &&, ||

ByrdNick, to conservative
@ByrdNick@nerdculture.de avatar

Should appeal to politically people who are paranoid about ?

Does “” thought heroize only White, male ?

This longish piece in the sketches the history of , its proponents (like ), its recent proponents on the right (like ), and more.

https://www.newyorker.com/magazine/2024/03/18/have-the-liberal-arts-gone-conservative

dave, to LLMs
@dave@mastodon.solar avatar

can't handle the truth (tables). They are impressively bad at .

If A xor B is true, and B xor C is true, then A xor C is false.

Reasoning is still the Achilles Heel of .

image/png
image/png

caten, to Logic
@caten@mathstodon.xyz avatar

I have a new(ish) preprint on the arXiv! You can find "Invariants of structures" at https://arxiv.org/abs/2402.18063. This is a somewhat embellished version of one half of my PhD thesis. A talk which I gave about this subject in the fall of 2022 is available at https://www.youtube.com/watch?v=5TeGZZ_mepc.

In this new version, I have finally added an explicit description of something I've been telling people for years: My main result shows that any first-order property of finite structures can be computed by counting small substructures. Perhaps surprisingly, this comes as a result of synthesizing a categorical treatment of Bourbaki's notion of mathematical structure with Hilbert's classical result on symmetric polynomials.

#CategoryTheory #combinatorics #algebra #AbstractAlgebra #logic #Bourbaki

siblingpastry, (edited ) to Logic
@siblingpastry@mastodon.world avatar

I came up with a kind of thought experiment this morning, but I'm not sure if it's valid or nonsense.


Either something has always existed, or at some point, nothing existed. Those are the only two possibilities.

Nothing means literally nothing -- no matter, no space, no time, nothing.

But that's not possible -- non-existence can't exist, that's a logical contradiction.

Therefore, something has always existed.


Is that logically sound, or is it just word play?

etcetera, to mathematics French
@etcetera@c.im avatar

Vous êtes 99 enfermés dans une pièce. Chacun doit choisir un nombre entier entre 1 et 100, et ce dans un temps limité et en autonomie (sans coordination avec les autres personnes). Vous ne survivrez que si personne d'autre ne choisit le même nombre que vous. Lequel choisissez-vous et pourquoi ?

⚠️ Please boost + répondre en mode content warning.

#existentialQuestion #questionExistentielle #maths #mathematics #logic #logique #Psychologie #psychology

rzeta0, to ai
@rzeta0@mastodon.social avatar

If you struggled with the traditional textbooks .. this short course was developed just for you.

✅ Develop understanding through hands-on bite-size examples.

✅ Example code is minimal to avoid distraction.

✅ Talk through how new ideas work, step-by-step.

✅ Avoid terminology and jargon if it is likely to hinder more than help.

YouTube: https://www.youtube.com/@prologbyexample/videos

Web: https://prologbyexample.blogspot.com/p/toc.html

GitHub: https://github.com/prologbyexample/code

Book: https://www.amazon.com/dp/B0BTQ7P69H/

siblingpastry, to random
@siblingpastry@mastodon.world avatar

Just musing on the concept of fallacies --

So a is defined by how the conclusion was arrived at, not what the conclusion actually is. Any conclusion that was arrived at through fallacious reasoning, is a logical fallacy.

However, that only proves that the conclusion is illogical, it doesn't prove that the conclusion is logically false.

Right?

rzeta0, to Logic
@rzeta0@mastodon.social avatar

Most of us agree that

P ⇒Q

is the same as

"If P is true, then Q is true"

But I can't see how it is also the same as

"P only if Q"

Help! 😵‍💫

KatyElphinstone, to Autism
@KatyElphinstone@mas.to avatar

#ActuallyAutistic

Subject: Outcome vs intentions

Research on 'outcomes mattering more than intentions to people with autism' is interesting 🤔

I personally way prefer outcomes!

Most people are not outcome-oriented (and I think we need to be more so) 🧵

#Autism #Logic

joshuagrochow, to random
@joshuagrochow@mathstodon.xyz avatar

Rogers's Equivalence Theorem (https://en.wikipedia.org/wiki/Admissible_numbering#Rogers'_equivalence_theorem) is more amazing than it sounds.

(Plus a question about it at the end)

It says that any two admissible numberings (aka programming languages: https://en.wikipedia.org/wiki/Numbering_(computability_theory)) of the partial computable functions are computably isomorphic.

To see how amazing this is: it's standard that you can write a program to compile Python programs to Java programs and vice versa. Just from those two compilers, Rogers's Equivalence Thm implies that there is a total computable function f that transforms Java programs into input-output-equivalent Python programs that is 1-to-1 (not so surprising) and onto - every Python program arises as f(p) for some Java program p, and p and f(p) compute the same function. That is pretty surprising!

#computability #programming #logic

ByrdNick, to Logic
@ByrdNick@nerdculture.de avatar

If mapping arguments improves critical thinking, then argument mapping skills should correlate with critical thinking skills, right?

Alas, they didn't correlate among 115 Advanced Placement students across 4 high schools who mapped arguments for universal basic income (from a Douglas Murray article).

proquest.com/docview/2915819770/abstract/336A7C32595F4464PQ/1

Pages 18 and 19 explaining the critical thinking test and assigned reading by Douglas Murray.
An example of a student's scored argument map (Figure 5a).
Pages 46 and 47 showing correlations between critical thinking test scores and each argument mapping score.

Onj, to random
@Onj@mastodonmusic.social avatar

I've talked before about how some default #DAW metronome sounds are stupid.
#Cubase, #ProTools... Just go home. Go home, stay at home and don't let anyone have to hear that shower singing noise. Kill it with fire. Or water as the case may be.

#Logic... Where you going with that? You can't leave the house with that stupid click. Get to your room!

#Reaper... Reaper... What? Just no. Don't even look at me like that, you know you're just wrong. Stop it. Don't!

#Ableton... Finally someone I'm not embarrassed to be seen with. Well done, well done.
#Maschine... Yep, you ain't half-bad either. Good. Proud of you.

Sure, you can make others behave nicer, but why are so many default metronomes just such a pile of shite?

lydiaschoch, to Logic
@lydiaschoch@mastodon.social avatar

Who else likes logic grid puzzles like these ones? https://www.brainzilla.com/logic/logic-grid/

I had a teacher who loved them. Sometimes she’d give us one to work on. After a while, she’d put up that same puzzle on the projector and explain how to solve it for anyone who didn’t find all of the answers.

Her enthusiasm for them made me a lifelong fan of them, too.

ScienceCommunicator, to climate
@ScienceCommunicator@mstdn.science avatar

pollution is harmful to people & is causing [1,2]

People burn wood [3]

Conclusion. People’s activities are harming themselves & causing climate change

Ref.

  1. The immediate impact of substituting wood for is an INCREASE in atmospheric relative to coal. https://dx.doi.org/10.1088/1748-9326/aaa512

  2. Woodsmoke is pollution https://www.dsawsp.org/

  3. Warning! Misinformation! Burning "certified wood" also causes diseases & global heating https://www.gov.uk/guidance/selling-wood-for-domestic-use-in-england

medievalchina, to philosophy
@medievalchina@zirk.us avatar

: Yan Fu 嚴復 (1854–1921), the most important translator of modern ideas into . He translated, among others, Thomas Huxley's and Ethics, Adam Smith's Wealth of Nations, and John Stuart Mill's On and A System of .

image/jpeg

TheQuinbox, to Logic

Does anyone have recommendations for a good beginners midi controller that's fairly cheap, ideally a 25-key one? I don't want to break the bank just yet, but I'm getting incredibly tired of Musical Typing and trying to play complex melodies on a MacBook's internal keyboard.

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