TAILIEUCHUNG - Lecture note Theory of automata - Lecture 22

The following will be discussed in this chapter: Applications of complementing and incrementing machines, equivalent machines, moore equivalent to mealy, proof, example, mealy equivalent to moore, proof, example. | Lecture # 31 Theory Of Automata By Dr. MM Alam 1 1 Lecture 30 at a glance Using JFLAP for PDA PDA Conversion to CFG Chomsky Normal Form Conversion in JFLAP 2 What are Non-Context-Free languages All languages are not CFL. Languages which are not Context-Free, are called Non-CFL. This chapter is about proving that all languages are not Context-Free We will also use the Pumping Lemma with and without JFLAP for the proof of the aforementioned fact. 3 Live Production VS Dead Production Definition A production of the form nonterminal string of two nonterminals is called a live production. A production of the form nonterminal terminal is called a dead production. Please keep in mind that every CFG in CNF has only aforementioned types of productions. Guess what, are the rules of CNF? 4 Live Productions Example Thanks to Daniel I Cohen. The above excerpts have been taken from his Book: Automata Theory, Chapter Non Context Free Languages. 5 Finite many words can be generated if a CFG is in

• Tự động hoá
• Theory of automata
• Lecture Theory of automata
• Computer theory
• Theory of computation
• Applications of complementing
• Equivalent machines
• Automata theory
• Automata theory languages
• Automata theory computation
• Pushdown automata
• Context Free grammars
• Regular languages
• Additional classes
• Intractable problems
• Properties of context free languages
• Solution of the task
• Polish notation
• Total language tree
• Null production
• Nullable production
• Theorem regarding CNF
• The START state
• Nondeterministic PDA
• Equivalent PDA
• PDA corresponding to CFG
• STACK alphabet
• Computer science
• CFG corresponding
• Conversion form of PDA
• Recap of PDA
• Non context free language
• Parsing techniques
• Turing machine
• DELETE subprogram
• Kleene’s theorem
• NFA corresponding
• Concatenation of FAs
• Distinguishable strings
• Indistinguishable strings
• Recap theorem
• Moore machine
• Mealy machine
• Mealy machines
• Complement of a language
• Non regular language
• Example of nonregular language
• Pumping lemma version I