Decidable
Encyclopedia
The word decidable may refer to:
- Decidable language
- Decidability (logic)Decidability (logic)In logic, the term decidable refers to the decision problem, the question of the existence of an effective method for determining membership in a set of formulas. Logical systems such as propositional logic are decidable if membership in their set of logically valid formulas can be effectively...
for the equivalent in mathematical logic - Gödel's incompleteness theorem, a theorem on the indecidability of languages consisting of "true statements" in mathematical logic.
- Recursive setRecursive setIn computability theory, a set of natural numbers is called recursive, computable or decidable if there is an algorithm which terminates after a finite amount of time and correctly decides whether or not a given number belongs to the set....
, a "decidable set" in recursion theory