əpɐɯ ı ɟɟnʇs əɯos
The First Seven Orders of Knottiness by P.G. Tait
Yes, it’s math. I’m sorry, is this a joke?
Solve the Riemann hypothesis & get a free burrito!
A path in a triangulated disk. Some junctions are colored red; some streets are colored blue.
I am serious. And don’t call me Shirley.
I shall become an algebrist!
Right, left, right, left, right, right, right, right.