III. return the bill to Congress for clarification on some point within the bill IV. allow the Congress to pocket veto the bill, thereby allowing the bill to become law without his signature a.
Decidability. Definition: 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. Working hypothesis I: Decidability is well defined above.roof: Surely, a decidable language is recognizable. Moreover, if a language is decidable, then so is its complement, and hence that complement is recognizable. Now suppose a language L and its complement are recognizable. Let A be a recognizer for L, and B for its complement.
To show that a language is decidable, we need to create a Turing machine which will halt on any input string from the language's alphabet.Since $M$ is a dfa, we already have the Turing Machine and just need to show that the dfa halts on every input.ow to prove a language is decidable. up vote 1 down vote favorite. I would like to see some proofs to show if particular string in machine M which dfa is decidable or not. I am trying to find some results on this but those are not appropriate. Any examples or proofs would be of great help.