- 1
- 70 025
Feynman's Chicken
Приєднався 1 січ 2023
More videos coming!
Category Theory: An Introduction to Abstract Nonsense
Correction: Universal Property of Quotients requires ker(f) to contain ker(pi)
0:00 Motivation
1:33 Basics in Category Theory
4:14 Group Objects
5:08 Functors
8:17 Universal Properties
11:57 Proof using Category Theory
13:27 Shortcomings of Category Theory
0:00 Motivation
1:33 Basics in Category Theory
4:14 Group Objects
5:08 Functors
8:17 Universal Properties
11:57 Proof using Category Theory
13:27 Shortcomings of Category Theory
Переглядів: 70 046
Love the storytelling themic explanation!
wow but definitely LOVE you for the succint based no fluff synopsis. damn.
I absolutely loved this introduction! You explained it really well, great job!
Thanks for this superb overview. Do you have the time or energy to upload any other great material? I would be very excited to watch any intricate mathematical material that you wish to explain or explore. Cheers 👍👍👍 Tony from Zurich
Where can we find this first illustration (math-world map)
I am an Electrical Engineer. I do not know why I am watching this video, but I am experimenting brain damage trying to understand this nonsense. Even do, I like it.
I watched a couple more, and I don't understand how the proof in the video has anything improved by category theory. It is just group homomorphism.
she peaked too soon
Love how al-jibr is a caliphate 😅
Good quality video, but I feel like it's only really useful as a review if you already basically know category theory. Really feels like you try to cover too much ground here with a lot of very confusing bits that needed more explanation. You can't really do an "intro" to category theory without spending a lot more time making certain things clear. A lot of the huge leaps in this presentation don't make any sense to anyone who hasn't already studied a good bit of category theory and other advanced maths
Welldone to Category theory...the mathematics that is
Thank you for time and energy spending to explain complicated ideas in a simple languave.
If Algebra is a caliphate does that mean Al-Jabr was the first caliph?
Very interesting! Especially the last slide... I wonder... Does every mathematician has to understand category theory?
Oh no! I learned something 🙈
It is a nonsense to listen to such videos at 2 am
This is such an incredible and well made video! Thank you for a wonderful introduction
Everytime I feel somewhat self confident I like to watch videos like these to feel dumb again
0:50 this is my way of approaching the world. I am a top down guy. This is why I appreciate this clip as an introduction. I get the high level stuff and could just drill into the details. My natural inclination is to sort and sieve details to get the generalizations! 😃
So obviously I am right now putting in the details into this generalization!
14:44 agree on the screwdriver 😂😂😂 That also means that you should not spend too much time figuring out how to make a screwdriver… Especially if you are making a sandwich 🥪 😂😂😂 Thank you for for that one 😂😂😂 Next time I do my screwdriver analogy! 😂😂😂
6:36 up to this point it actually was a very good explanation. Quite a bit easier than reading it in formal language in any language, but especially challenging in French language! 👍
Damn, you know you some math!
Your definition of analysis was kinda bland
10:10 A category theorist is someone who can say "such that the diagram cmmutes" and seriously believe that this does not need any further explanation whatsoever.
Hi there Feyman's Chicken, if you see this PLEASE MAKE MORE VIDEOS.
Hello, does anyone have a step-by-step reference to understand the group object?
There’s lots of papers on the internet Google group theory
I'm trying to awlf-study this stuff so that I can, later, try to apply it to cliodynamics, behavioral economics, quantitative finance, and economic anthropology. But, so far, I've found Category Theory HARD. Your video helped me understand it better. I hope that you keep making these sorts of videos.
Please make more videos!!!
Academics just want to make more and more papers, if it means it sacrifice logic and reality so be it
Dense clear and concise. thank you.
I guess I go back to elementary school level math ...
I love how you've been able to do such a comprehensive video on category theory with so much content. Such an awesome job. Fantastic!
No :(
how do category theory & grp theory relate to each other?
This is the best video I have ever seen on mathematics. Absolutely gorgeous. If i had money I wouldve comtributed
Wow - from basic definitions to functors and natural transformations and on to infinity categories in less than 10 minutes! Quite remarkable. Really hope you choose to make more videos, because this was one of the best introductions to CT that I have come across!
You have to make more videos, pleasseeee
Califate of AL Gebra, where Califate is any Islamic empire. Nice.
I have a hard time believing that anyone who did not understand category theory before this video would understand it afterwards. Poor pedagogy because it is just providing vocabulary instead of making an effort to explain. Virtually no examples. Exactly what is wrong with some mathematics education. Designed to appeal to a tiny fraction of those who might be capable of understanding it. No effort to motivate the problem these theories are trying to solve.
yes, it's not good to start with definitions instead of starting with motivations
good point
This is the most underrated channel I've seen for a while. Keep up the great work!
The individual speaking in this video is gender-neutral or gender-fluid, has colored hair and spends lots of time editing gender studies topics on Wikipedia...It is working on a generalization of gender theory called "Gender Dynamics," and will introduce concepts such as "gendoids" and "gendons" that operate in Gender Spaces with axioms governing their "gendorphisms." It will surely win a Fields Medal for this groundbreaking work that combines Genitalia with Topology, Analysis and Algebra.
how do you know?
Do a video like this on TOPOS THEORY!
Profound! And some reflections: ... abstract algebra by nature is -emm- abstract so easily lends itself to transformations by "changing the labels of like things"? algebraists look for standards between mathematical things? Mathematical things depend a lot on labels applied to them and so remain consistent when labels are changed? analysts on the other hand seem to be drawn to things of inconsistency especially when analysis gives explanation for the inconsistencies? And at this point attract research funding because pointwise events do not readily lend themselves to generalities until those generalities are identified or reduced by a new analytical definition of some sort I agree there is a horribly magnificent something living in math that seems to show a rainbow effect: the closer one approaches the more rapidly the rainbow disappears or re-locates Q: Is Category Theory the way to go? A: hell yeah! It seems a very good way to go Excellent work!
I heard schroedinger's cat ate Feynman's chicken. Just a theory....
Just wanting to let you know that you did an amazing job making this video! Thank you!
Great video! The theme style is also very compatible with maths. I hope you'll make more videos.
Great (very) high-level intro, thank you! 😁 I'd love to see a series of videos, at various levels. Suggestion to everyone doing Category theory: use the *"semicolon" notation* for the composition of morphisms. I think it's much more intuitive to say (f ; g) than the reversed (g o f) I got more interested in Category theory upon learning about Lawvere’s fixed point theorem, and its applications: mind-blowing about the many famous diagonal arguments that can be derived from it! www.uibk.ac.at/mathematik/algebra/staff/fritz-tobias/ct2021_course_projects/lawvere.pdf
b-b-b-based!?!?!?!
One more great channel
Love this video. Please make more! :)
nice one feynman's chicken. lets see if you can come up with a functor from feynman's diagrams to pure math.