Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
Consider the alphabet is Σ = {a,b,c}. For each of the following languages, specify if the
language is regular or non-regular. You must support your answer: if the language is non-
regular, explain why; if the language is regular design a finite automaton that accepts the
language.
(a) {a²ibi | i, j≥ 1}
(b) {anfmck | n, m, k ≥ 1}
(c) {anzn+mcm | n,m≥ 1}
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Transcribed Image Text:Consider the alphabet is Σ = {a,b,c}. For each of the following languages, specify if the language is regular or non-regular. You must support your answer: if the language is non- regular, explain why; if the language is regular design a finite automaton that accepts the language. (a) {a²ibi | i, j≥ 1} (b) {anfmck | n, m, k ≥ 1} (c) {anzn+mcm | n,m≥ 1}
Expert Solution
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Step 1: Stating the problem:

We are given three different languages and asked whether they are regular languages or not.

Regular languages can be Finite or infinite. If for a language, we can draw a finite automaton then that language is regular language otherwise it's not a regular language.

I have attached the solution below.

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