Tag
separation
- Jan 22, 2025 Diagonalization and the Time Hierarchy Theorem How a machine that runs itself on its own description separates two time bounds, why the constructibility condition cannot be dropped, and what the theorem does not prove. computation theory
- Nov 1, 2024 Oracles, Relativization, and the Limits of Diagonalization How adding an oracle changes what a proof can see, why there are oracles that collapse P and NP and oracles that separate them, and what that implies for any argument that treats machines as black boxes. computation theory