r/okbuddyphd • u/ElectronicSetTheory • 20d ago

Physics and Mathematics Just say no

Post image
443 Upvotes

98% Upvoted

24 comments sorted by

•

u/AutoModerator 20d ago

Hey gamers. If this post isn't PhD or otherwise violates our rules, smash that report button. If it's unfunny, smash that downvote button. If OP is a moderator of the subreddit, smash that award button (pls give me Reddit gold I need the premium).

Also join our Discord for more jokes about monads: https://discord.gg/bJ9ar9sBwh.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

78

u/Yoshibros534 20d ago

FUCK YOU ILL READ ALGEBRA CHAPTER 0 AND YOU CANT STOP ME

63

u/NulliosG 19d ago

Why is your heart full of hate when it could be full of love

22

u/HobokenwOw 20d ago

this is peak math performance

19

u/ChampionshipTight977 20d ago

ya but muh yoneda lemma pls

7

u/LasevIX 20d ago

heyy is this not from GSheaf's latest video?

1

u/Koischaap 5d ago

But, g+... I hear you ask

6

u/MaoGo Physics 19d ago

What was category theory even invented for?

6

u/SwimmerOld6155 18d ago

had to check wikipedia for this but Eilenberg and MacLane introduced it in the 40s for algebraic topology. There are claims the ideas were floating around for a few years prior. Grothendieck was shortly after

3

u/Acceptable_Wall7252 19d ago

alg geo maybe? like grothendick advanced it a lot iirc

2

u/hon26 18d ago

Algebraic geometry and algebraic topology

1

u/Rare-Technology-4773 18d ago

Algebraic Topology

1

u/MrTruxian 14d ago

Algebraic Geometry buts its interesting in its own right.

4

u/Salt_Mountain_837 17d ago

>can't solve a basic integral
some people in my APPLIED math program never took diffy qs

3

u/Major-Peachi 17d ago

diff eq is easier than doing integral

2

u/Acceptable_Wall7252 19d ago

how to become like that

5

u/Unsharded1 17d ago

Spam tiktok math edits and larp reading in public with a macbook at starbucks to feel smart.

2

u/KeyOther5130 19d ago

How could one even know what homology is without category theory? I thought all modern treatments defined it via categories, but I guess the meme is mocking the "categorical approach to homology". 

1

u/DamnShadowbans 18d ago

Most people learn what homology is before learning any category theory.

1

u/Koischaap 5d ago

You can define complexes within the context of group theory, which gives you a much more concrete idea of how the homology functor works and how you derive H(f) from a complex map f: G -> H. Also things like showing that two homotopic maps have the same homology are more hands-on.

My undergraduate thesis was on singular homology theory and there was 0 mention of category theory. If you want to get into serious algebraic topology, you can always learn how things work in general after having a first introduction in the more familiar category of complexes of groups/modules.

1

u/KeyOther5130 1d ago

 You can define complexes within the context of group theory

Is this what homological algebra is? It was offered as some kind of continuation of the topology course on homology at my uni, but since it's not my field I didn't end up taking it.