Non - sl languages, Theory of Computation

The key thing about the Suffx Substitution Closure property is that it does not make any explicit reference to the automaton that recognizes the language.

While the argument that establishes it is based on the properties of a Myhill graph that we know must exist, those properties are properties of Myhill graphs in general and don't depend on the speci?cs of that particular graph. This lets us reason about the strings in an SL2 language without having to actually produce the automaton that recognizes it. Perhaps more importantly, it lets us establish that a particular language is not SL2 by supposing (counterfactually) that it was SL2 and showing that Suffx Substitution Closure would then imply that it included strings that it should not.

Posted Date: 3/21/2013 6:11:15 AM | Location : United States







Related Discussions:- Non - sl languages, Assignment Help, Ask Question on Non - sl languages, Get Answer, Expert's Help, Non - sl languages Discussions

Write discussion on Non - sl languages
Your posts are moderated
Related Questions
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

The universe of strings is a very useful medium for the representation of information as long as there exists a function that provides the interpretation for the information carrie

We represented SLk automata as Myhill graphs, directed graphs in which the nodes were labeled with (k-1)-factors of alphabet symbols (along with a node labeled ‘?' and one labeled

constract context free g ={ a^n b^m : m,n >=0 and n

Paths leading to regions B, C and E are paths which have not yet seen aa. Those leading to region B and E end in a, with those leading to E having seen ba and those leading to B no

As we are primarily concerned with questions of what is and what is not computable relative to some particular model of computation, we will usually base our explorations of langua

A context free grammar G = (N, Σ, P, S)  is in binary form if for all productions A we have |α| ≤ 2. In addition we say that G is in Chomsky Normaml Form (CNF) if it is in bi

The path function δ : Q × Σ* → P(Q) is the extension of δ to strings: This just says that the path labeled ε from any given state q goes only to q itself (or rather never l

What is the Best way to write algorithm and construct flow chart? What is Computer? How to construct web page and Designe it?