Similar to イルミネーション問題

Duality (optimization)

Birthday problem

Chinese postman problem

Halting problem

Dirichlet problem

Dubins–Spanier theorems

Knapsack problem

Napkin ring problem

Nim-sum

Hamiltonian path problem

Topswops

Bin packing problem

Fagnano's problem

Fermi problem

Subset sum problem

Brocard's problem

Well-posed problem

Class number problem

Mathematics

0.999...

Zero-dimensional space

Zero to the power of zero

One-dimensional space

1 + 1 + 1 + 1 + ⋯

1 + 2 + 3 + 4 + ⋯