"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
"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
"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