In: Computer Science
What does it mean to say that a language L is decidable?
ANSWER: As we know that a language be any set of strings (or words) over a given finite alphabet. The alphabet could consist of the symbols we normally use for communication, such as the ASCII characters on a keyboard, including spaces and punctuation marks. In this way any story can be regarded as a "word".A language is called decidable if there exists a method - any method at all - to determine whether a given word belongs to that language or not.