Documents March 2, 2015CS21 Lecture 231 CS21 Decidability and Tractability Lecture 23 March 2, 2015.

Slide 1 March 2, 2015CS21 Lecture 231 CS21 Decidability and Tractability Lecture 23 March 2, 2015 Slide 2 Outline the class co-NP the class NP Å coNP the class PSPACE –a…