Category Theory in Life - Eugenia Cheng
Lambda World3 HN recommenders · recommended in 3 months, 2019-2022
113K views · 9 years ago · talk · evergreen
Eugenia Cheng gives the opening keynote at Lambda World 2017, presenting category theory as very abstract algebra whose abstraction gives it broad applicability. She applies it to everyday questions including privilege and prejudice.
HN recommends it as an accessible, gentle introduction that makes category theory feel approachable and shows its analogy-making power.
46:46Category Theory 1.1: Motivation and Philosophy
Bartosz Milewski
394K views • 10 years ago
1:03:14Category Theory, The essence of interface-based design - Erik Meijer
FooCafe
74K views • 11 years ago
1:36:54Category Theory by Tom LaGatta
AI Council
73K views • 12 years ago
1:02:15Lambda Calculus - Fundamentals of Lambda Calculus & Functional Programming in JavaScript
Fullstack Academy
227K views • 9 years ago
1:07:10Brian Beckman: Don't fear the Monad
jasonofthel33t
415K views • 13 years ago
1:30:45The Simple Essence of Automatic Differentiation - Conal Elliott
Microsoft Research
17K views • 8 years ago
21:58Group theory, abstraction, and the 196,883-dimensional monster
3Blue1Brown
3.8M views • 6 years ago
1:04:35The Algebra of Algebraic Data Types
London Haskell
27K views • 13 years ago
42:43"Propositions as Types" by Philip Wadler
Strange Loop Conference
143K views • 11 years ago
1:05:51The Functional Programmer's Toolkit - Scott Wlaschin
NDC Conferences
79K views • 7 years ago
56:58Philip Wadler - Propositions as Types (Lambda Days 2016)
Erlang Solutions
20K views • 10 years ago
1:04:16Simon Peyton-Jones: Escape from the ivory tower: the Haskell journey
Churchill College, University of Cambridge
170K views • 9 years ago
40:50Ruby Manor 3 - Programming with Nothing by Tom Stuart
Confreaks
13K views • 14 years ago
17:05The essence of calculus
3Blue1Brown
11.9M views • 9 years ago
1:00:341. Introduction, Finite Automata, Regular Expressions
MIT OpenCourseWare
626K views • 5 years ago
14:27All the Numbers - Numberphile
Numberphile
1.8M views • 7 years ago
48:55Pythagoras' theorem (a) | Math History | NJ Wildberger
Insights into Mathematics
517K views • 15 years ago
1:54:46Lenses, Folds, and Traversals
Edward Kmett
54K views • 13 years ago
10:44P vs. NP and the Computational Complexity Zoo
hackerdashery
3.7M views • 12 years ago
1:03:34Simon Peyton Jones - Linear Haskell: practical linearity in a higher-order polymorphic language
Curry On!
19K views • 8 years ago
3 comments from Hacker News
Eugenia Cheng has some interesting and accessible videos, e.g.: ▶ this video and in a similar vein I am enjoying her book: "How to Bake Pi". Getting more into the technical side of things, Bartosz Milewski has good lessons in this playlist: link
There is an applied category theory course that is currently in the process of wrapping up: link The examples in the course offer a complementary entry point to category theory compared to an approach that leverages programmers' knowledge of functional programming. Personally, the more examples the better. I'm grateful to be able to rely on the example of a category as a collection of objects corresponding to types, and arrows between types corresponding to functions with that type signature, and arrow composition corresponding to function composition (and functors, and natural transformations, and ... corresponding to familiar concepts like polymorphic types, and map, and polymorphic functions and ...). I believe that many programmers can [come to] understand this one specific example of category theory objects, even if the words are unfamiliar. And there are so many more examples! There is a great pleasure in formalizing the analogies across different aspects of math and engineering. To get a flavor of and gentle introduction to the analogy-making power of category theory, I recommend this talk by Eugenia Cheng: ▶ this video
"But it’s hard to explain to people not steeped in the subject." I don't agree. Actually it can be understood relatively easily, if it's explained well: ▶ this video link