An enumerator is a Turing machine that lists, possibly with repetitions, elements of some set S, which it is said to enumerate. A set enumerated by some enumerator is said to be recursively enumerable.
An enumerator is a Turing machine that lists, possibly with repetitions, elements of some set S, which it is said to enumerate. A set enumerated by some enumerator is said to be recursively enumerable.