Kleenes theorem, Theory of Computation

All that distinguishes the de?nition of the class of Regular languages from that of the class of Star-Free languages is that the former is closed under Kleene closure while the latter is closed only under complement. Since the Star-Free languages are exactly the LTO languages which are a subclass of the Recognizable languages and the class of Recognizable languages is closed under union, concatenation and Kleene closure, it follows that every Regular language is Recognizable.

Posted Date: 3/21/2013 1:20:16 AM | Location : United States







Related Discussions:- Kleenes theorem, Assignment Help, Ask Question on Kleenes theorem, Get Answer, Expert's Help, Kleenes theorem Discussions

Write discussion on Kleenes theorem
Your posts are moderated
Related Questions
Myhill graphs also generalize to the SLk case. The k-factors, however, cannot simply denote edges. Rather the string σ 1 σ 2 ....... σ k-1 σ k asserts, in essence, that if we hav

proof ogdens lemma .with example i am not able to undestand the meaning of distinguished position .

Computations are deliberate for processing information. Computability theory was discovered in the 1930s, and extended in the 1950s and 1960s. Its basic ideas have become part of

The Last Stop Boutique is having a five-day sale. Each day, starting on Monday, the price will drop 10% of the previous day’s price. For example, if the original price of a product

proof ogdens lemma .with example i am not able to undestand the meaning of distinguished position .

LTO was the closure of LT under concatenation and Boolean operations which turned out to be identical to SF, the closure of the ?nite languages under union, concatenation and compl

All that distinguishes the de?nition of the class of Regular languages from that of the class of Star-Free languages is that the former is closed under Kleene closure while the lat

Describe the architecture of interface agency

Another striking aspect of LTk transition graphs is that they are generally extremely ine?cient. All we really care about is whether a path through the graph leads to an accepting

Computer has a single FIFO queue of ?xed precision unsigned integers with the length of the queue unbounded. You can use access methods similar to those in the third model. In this