You may think it is not there. But it is.

Mathematics

Kleeneness is next to Godelness.

Kleeneness is next to Godelness.

In the realm of theoretical computer science, the interplay between computability and logic has always been a subject of profound intrigue
JJ 29 Sep 2025
"We warn the reader in advance that the proof presented here depends on a clever but highly unmotivated trick." - Howard Anton, "Elementary Linear Algebra"

"We warn the reader in advance that the proof presented here depends on a clever but highly unmotivated trick." - Howard Anton, "Elementary Linear Algebra"

Dr
JJ 22 Aug 2025
"I think it is true for all _n. I was just playing it safe with _n >= 3 because I couldn't remember the proof." - Baker, Pure Math 351a

"I think it is true for all _n. I was just playing it safe with _n >= 3 because I couldn't remember the proof." - Baker, Pure Math 351a

In a significant development in the world of mathematics, renowned mathematician and professor, Dr
JJ 22 Jul 2025
"Klein bottle for sale" - inquire within.

"Klein bottle for sale" - inquire within.

In a curious twist of topology and commerce, a rare and intricate Klein bottle, a mathematical curiosity that defies the conventional boundaries of three-dimensional space, is now available for purchase
JJ 07 Jun 2025
Things to think on.