Theory of Computer Science A1. Organizational Matters Gabriele R¨oger
Volltext
ÄHNLICHE DOKUMENTE
For the undecidability of the halting problem, we will use an analogous argument, only with Turing machines instead of code and termination instead of return
I For the undecidability of the halting problem, we will use an analogous argument, only with Turing machines instead of code and termination instead of return values... The
I If you read a 1 at the first tape position, move every non-blank symbol on the tape one position to the right, write a 1 in the first tape position and accept...
for 2.: identical to (1), only that M B only recognizes B and therefore the simulation does not necessarily terminate if y 6∈ B. Since y 6∈ B iff x 6∈ A, the procedure still
for 2.: identical to (1), only that M B only recognizes B and therefore the simulation does not necessarily terminate if y 6∈ B. Since y 6∈ B iff x 6∈ A, the procedure still
I Instead, we prove a much more general result, Rice’s theorem, which shows that a very large class of different problems are undecidable.. I Rice’s theorem can be summarized
Clique , IndSet , VertexCover three classical routing problems:. DirHamiltonCycle , HamiltonCycle
Does this graph have a vertex cover of size 4?.. VertexCover is