TAILIEUCHUNG - Lecture Theory of automata - Lecture 41

This chapter presents the following content: Recap of PDA in conversion form, example of PDA in conversion form, joints of the machine, new pictorial representation of PDA in conversion form, summary table, row sequence, row language. | Recap lecture 40 Recap of example of PDA corresponding to CFG, CFG corresponding to PDA. Theorem, HERE state, Definition of Conversion form, different situations of PDA to be converted into conversion form Conversion form of PDA Definition: A PDA is in conversion form if it fulfills the following conditions: There is only one ACCEPT state. There are no REJECT states. 3. Every READ or HERE is followed immediately by a POP . every edge leading out of any READ or HERE state goes directly into a POP state. CFG corresponding to PDA No two POPs exist in a row on the same path without a READ or HERE between them whether or not there are any intervening PUSH states (. the POP states must be separated by READs or HEREs). All branching, deterministic or nondeterministic occurs at READ or HERE states, none at POP states and every edge has only one label. CFG corresponding to PDA Even before we get to START, a “bottom of STACK” symbol $ is placed on the STACK. If this symbol is

• Kỹ thuật lập trình
• Theory of automata
• Lecture Theory of automata
• Computer theory
• Theory of computation
• Computer science
• Conversion form of PDA
• Recap of PDA
• 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
• CFG corresponding
• 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
• Applications of complementing
• Equivalent machines
• Mealy machines
• Complement of a language
• Non regular language
• Example of nonregular language
• Pumping lemma version I