Category Theory Illustrated – Natural Transformations • Hacker News Board

auggierose wrote: post #4

There are too many pictures in this for my taste. I am currently reading this one, and I like it better so far: https://doi.org/10.1142/13670

It's author's intention, since the title explicitly says "Illustrated" =)

Re: Category Theory Illustrated – Natural Transformations

#6

Post by auggierose » Wed, Oct 01, 2025, 10:13 AM UTC

IdontKnowRust wrote: post #5

auggierose wrote: post #4

There are too many pictures in this for my taste. I am currently reading this one, and I like it better so far: https://doi.org/10.1142/13670

It's author's intention, since the title explicitly says "Illustrated" =)

Fair enough.

Re: Category Theory Illustrated – Natural Transformations

#7

Post by phoronixrly » Wed, Oct 01, 2025, 10:51 AM UTC

larodi wrote: post #2

this has surfaced HN top at least 5 times https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...

It has been updated as per the author's Mastodon https://mathstodon.xyz/@abuseofnotation/115298450513159834

Re: Category Theory Illustrated – Natural Transformations

#8

Post by hamburgererror » Wed, Oct 01, 2025, 11:09 AM UTC

What's the thing with category theory? I see this topic discussed quite frequently here but I don't get it why people are so into it

Re: Category Theory Illustrated – Natural Transformations

#9

Post by sesm » Wed, Oct 01, 2025, 11:37 AM UTC

> In the course of this book, we learned that programming/computer science is the study of the category of types in programming languages.

This is a golden quote.

Re: Category Theory Illustrated – Natural Transformations

#10

Post by jiggunjer » Wed, Oct 01, 2025, 11:45 AM UTC

hamburgererror wrote: post #8

What's the thing with category theory? I see this topic discussed quite frequently here but I don't get it why people are so into it

Lets software designers use fancy words and ask for a raise.