Non-deterministic computation and the Jayne-Rogers Theorem
  We provide a simple proof of a computable analogue to the Jayne Rogers Theorem from descriptive set theory. The difficulty of the proof is delegated to a simulation result pertaining to non-deterministic type-2 machines. Thus, we demonstrate that developments in computational models can have applications in fields thought to be far removed from it. 
Arno Pauly, Matthew de Brecht
cs.LO math.LO