In computability and complexity theory, ALL is the class of all

decision problem In computability theory and computational complexity theory, a decision problem is a computational problem that can be posed as a yes–no question on a set of input values. An example of a decision problem is deciding whether a given natura ...

Relations to other classes

ALL contains all of the complex classes of decision problems, including RE and co-RE, and uncountably many languages that are neither RE nor co-RE. It is the largest complexity class, containing all other complexity classes.

External links

* Complexity classes Undecidable problems {{comp-sci-theory-stub