Iso (math fool)

The study of surjective maps is called onto-logy

How many angles can there be on the head of a pin? Depending a little on setup, maybe 2π steradians... or possible 4π

"Oh, this problem? I spent two weeks puzzled by it earlier this year, and I don't even remember how I solved it." Way to learn nothing

All my mathematics is verified in spleen [gut feeling]

Topology is too hard, so we do algebra instead. The algebra is still too hard, though

The proof of the Hahn Banach theorem is similar to the proof that the square root of 2 is irrational, mutatis mutandis

Pairing Peter May's discussion of the van Kampen theorem with Lang's discussion of the free product. It wasn't meant to be easy, I guess

Man is born free, yet everywhere he is a homomorphic image subject to nontrivial generator relations

Shoutout to Norwegians

"When the sperm pierces the egg..." Actually, he's called Peirce

In general relativity there is this rubbish sheet analogy that spacetime is like a fabric, and it is rubbish

"[I]t is clear that the commutator subgroup is at the heart of solvability..." It is hillarious that this is all Lang says about the connection between the two

I get unreasonably angry with myself when I don't understand the math

Aristotle is said in many ways. Among common men it's said Aristotle. Among people not prone to bastardize Greek he is called Aristoteles. Among the Medieval men he is simply called The Philosopher.

Today I got an interaction with a student getting me to think about the power of Abel summation again. That kindled some kind of spark of passion for math in me

Democarcy is when two wolves and one sheep unanimously vote to execute Socrates

Substantiv är namn på ting, till exempel grupp och ring. Verb är sådant som man gör; avbildar, verkar, och förgör

One of my confusions down. Thank goodness I LaTeXed a derivation at a time when I understood it. As usual, the thing was trivial

In English, Socrates asks what justice is. In Swedish he asks what "rättrådighet" is. Like, I have no clue, Socrates, because you used some archaic Swedish word I've never seen before