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For each of the following languages, prove that it is not regular. 1. L1 = {an*+5 : n > 0} 2. L2 = {vuvR : v, u E {a, b}*, [u| = 2} 3. L4 = {a'b'c* : i > 2j + 3k} Extra practice questions The following question is for extra practice, and will not be marked. Is the language {a*b°c* : i > 0, j > k > 0} regular? Prove or disprove your answer.

For each of the following languages, prove that it is not regular. 1. L1 = {an*+5 : n > 0} 2. L2 = {vuvR : v, u E {a, b}*, [u| = 2} 3. L4 = {a'b'c* : i > 2j + 3k} Extra practice questions The following question is for extra practice, and will not be marked. Is the language {a*b°c* : i > 0, j > k > 0} regular? Prove or disprove your answer.

Database System Concepts
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
Section: Chapter Questions
Problem 1PE
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For each of the following languages, prove that it is not regular. 1. L1 = {an*+5 : n > 0} 2. L2 = {vuvR : v, u E {a, b}*, [u| = 2} 3. L4 = {a'b'c* : i > 2j + 3k} Extra practice questions The following question is for extra practice, and will not be marked. Is the language {a*b°c* : i > 0, j > k > 0} regular? Prove or disprove your answer.
Transcribed Image Text:For each of the following languages, prove that it is not regular. 1. L1 = {an*+5 : n > 0} 2. L2 = {vuvR : v, u E {a, b}*, [u| = 2} 3. L4 = {a'b'c* : i > 2j + 3k} Extra practice questions The following question is for extra practice, and will not be marked. Is the language {a*b°c* : i > 0, j > k > 0} regular? Prove or disprove your answer.
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