Practice: show that L = {awa: w E {a,b}*} is regular.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Show that the following is regular. Please Construct a DFA to accept the following.

Practice: show that L = {awa: w E
{a, b}*} is regular.
Transcribed Image Text:Practice: show that L = {awa: w E {a, b}*} is regular.
Expert Solution
Step 1

Construct DFA for the language

L = {aωa: ω  {a, b}* } is regular

DFA is a collection od 5-tuples and is as follows

DFA = (Q, δ, q0, F)

where,

Q: finite set called state

: finite set call alphabets

δ: Q x -> is a transition function

q0  Q is a start or the initial state

F: final state

 

DFA = ( {q0, q1, q2, q3}, {a, b}, q0, δ, q2}

the language will be L = {aa, aba, aaa, abaaba, aaba,.....}

 

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