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.
English is, in fact, an example of this: The Norman French of the conquerers has long disappeared, but not before changing Anglo-Saxon into, well, a highly Frenchified English. If a people are isolated on islands or mountain valleys, language can change very slowly indeed.But it still changes. For example, in the highlands of Papua New Guinea are many dozens of languages, each quite different from its neighbors.nglish is, in fact, an example of this: The Norman French of the conquerers has long disappeared, but not before changing Anglo-Saxon into, well, a highly Frenchified English. If a people are isolated on islands or mountain valleys, language can change very slowly indeed.