Keff 🍊's Avatar

Keff 🍊

@kefyor.bsky.social

Mathematician and Big Orangeβ„’. 18+ only πŸ”ž. UK-Based | Single | Demi(?) | Algebraic Topologist they/them πŸ©β‰ƒβ˜•οΈ

2,780 Followers  |  1,231 Following  |  4,324 Posts  |  Joined: 04.08.2023
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Posts by Keff 🍊 (@kefyor.bsky.social)

Only that science sometimes uses the results of it.

05.03.2026 00:19 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Haven't posted this one here yet

03.03.2026 00:00 β€” πŸ‘ 2836    πŸ” 486    πŸ’¬ 14    πŸ“Œ 1

Very very good day.

Had a nice teaching session, am wrapping up a big proof, and I lifted lots at the gym.

...and I got a fursuit slot from the maker I really wanted πŸ§‘πŸ‘€

02.03.2026 23:07 β€” πŸ‘ 34    πŸ” 1    πŸ’¬ 5    πŸ“Œ 0

Microsoft: if it's on the internet it's free to take.

*people post Minecraft source code on the internet*

Microsoft: nooo not like thaaaattt...

04.03.2026 23:30 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I can't say that without giving away too much information!

04.03.2026 23:22 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

A manifold with a boundary is not a manifold.
Learned that ages ago and it made me very interested and curious about topology.

04.03.2026 23:21 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Unfortunately it's a hard subject to teach.

04.03.2026 23:21 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I don't think mnemonics are necessary at a higher level. Math becomes intuitive, but there might be a few.

"Left is Leaving, Right is Returning" is what I tell students for remembering the directions of adjoint functors in category theory.

04.03.2026 23:21 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I just realized I like reasoning about structures. When you learn that mathematics is nothing like what you do in school, it becomes more interesting. It's not just remembering equations or plugging in numbers, but it's exploring concepts.

04.03.2026 23:20 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Abstract algebra.

04.03.2026 23:19 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Huge...

04.03.2026 23:18 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The dad bod is slowly appearing in real life...
Gaining belly and muscle.

04.03.2026 22:52 β€” πŸ‘ 30    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

I cooked with that one.

04.03.2026 19:32 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Well yeah, most people who push AI are techbros and corpos who only care about money. To them everything is a product, and the product is the only thing that matters.

04.03.2026 19:05 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Keff (orange dragon) smiling and huffing in front of a blurred chalkboard.

Keff (orange dragon) smiling and huffing in front of a blurred chalkboard.

Anyway yeah hi I'm Keff and I love mathematics.
Ask me about math. Talk to me about math.
Math is my life.
Math.

04.03.2026 18:53 β€” πŸ‘ 54    πŸ” 2    πŸ’¬ 9    πŸ“Œ 0

Mathematics is basically structured philosophy. The joy of philosophy is in the thinking and reasoning, but if you just jump straight to the end conclusion you suck all the fun out of it. Solving the trolley problem without thinking of the trolley.

04.03.2026 18:49 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

"AI can do all the math you're doing" fuck off.

I do math because I love it. I invent and create, I describe things never described before and investigate them. Doing math just for the end results sounds completely soulless.

04.03.2026 18:48 β€” πŸ‘ 19    πŸ” 0    πŸ’¬ 3    πŸ“Œ 0

Hoping for a new communications technology so we get about 15 years (hopefully) of Wild West again.

04.03.2026 16:05 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Hello. Come and snuggle us. Come and snuggle us. Forever.

πŸ“Έ @wolverines.bsky.social
βœ‚οΈ @thekareliafursuits.com

#furry #fursuit

04.03.2026 13:50 β€” πŸ‘ 266    πŸ” 55    πŸ’¬ 11    πŸ“Œ 0

Need to get contact lenses. I look better without glasses :(

04.03.2026 13:47 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

Please.

04.03.2026 11:00 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Recover well 🧑

04.03.2026 01:28 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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grr -with intentions of getting you pregnant-

02.03.2026 20:52 β€” πŸ‘ 1799    πŸ” 363    πŸ’¬ 6    πŸ“Œ 0
A gator works on a gnoll's "tools" while he's doing work on a car! Making sure to give that dick a good lap up and down; giving it the proper lubrication it needs! 🐊🐊

A gator works on a gnoll's "tools" while he's doing work on a car! Making sure to give that dick a good lap up and down; giving it the proper lubrication it needs! 🐊🐊

A gator works on a gnoll's "tools" while he's doing work on a car! Making sure to give that dick a good lap up and down; giving it the proper lubrication it needs! Wai-- Who knew it could be self-lubricating too?! Now there's so a big mess all over the gator and the "tool". 🐊🐊

A gator works on a gnoll's "tools" while he's doing work on a car! Making sure to give that dick a good lap up and down; giving it the proper lubrication it needs! Wai-- Who knew it could be self-lubricating too?! Now there's so a big mess all over the gator and the "tool". 🐊🐊

Routine maintenance πŸ’¦

@baerbeast.bsky.social

02.03.2026 23:51 β€” πŸ‘ 829    πŸ” 203    πŸ’¬ 6    πŸ“Œ 0

What should I wear?

03.03.2026 22:50 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Bluesky's back!

03.03.2026 22:50 β€” πŸ‘ 13    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Blockbuster but for sex toys.

03.03.2026 19:05 β€” πŸ‘ 13    πŸ” 0    πŸ’¬ 5    πŸ“Œ 0

Hey πŸ‘€

03.03.2026 07:55 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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may i interest u in sheath and balls

03.03.2026 04:07 β€” πŸ‘ 363    πŸ” 60    πŸ’¬ 7    πŸ“Œ 1
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Fuck this stupid flying cat.

02.03.2026 12:19 β€” πŸ‘ 18    πŸ” 1    πŸ’¬ 3    πŸ“Œ 0