Is the language composed of all strings over the alphabet {a,b} that contain an odd number of a's a regular language? If so, show why. Note, again, that you may use any line of argument on regular languages, e.g., by drawing the FSA,or by using Closure properties of regular languages, along with the fact that the language is regular

Is the language composed of all strings over the alphabet {a,b} that contain an odd number of a's a regular language? If so, show why. Note, again, that you may use any line of argument on regular languages, e.g., by drawing the FSA,or by using Closure properties of regular languages, along with the fact that the language 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

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Show that the following language is not context free. DO NOT use pumping lemma. {a*b"c"b" | n> k> 0}
Write a regular expression that describes the languages of automata from picture 1 and picture 2Hint: It's the same language.
Determine whether the following languages are regular or not with proper justification. (i) L, = {a"bc" |n> 0} (1) %3D
Show the language L = {a"b*c": n > 0, k > 0} is not regular.
Give regular expression that describes the following language, which isover the alphabet {0, 1}.w : w does not contain substring 001, and w contains an even number of 1’s
Give a CFG that generates the language ?2={????|?>?} over Σ={?,?}.
d. Write a Lisp program that verifies if a list of symbols is correct from the point of view of this grammar. For example, (check-A '(y w z w y)) (check-A '(y z w w)) should return true (t) and should return false (nil).
i. Define a language L, in a recursive way where the strings should not contain ab at any place over alphabet Σ = {a, b} ii. Give a regular expression for the Language over the alphabet Σ = {a, b} containing the count of b’s are alwaysmultiple of 2.
Let L1, L2, and L3 be languages over some alphabet. In each case below, two languages are given. Say what the relationship is between them. (Are they always equal? If not, is one always a subset of the other?) Give reasons for your answers, including counterexamples if appropriate. 1. L1(L20L3), L1L20LL3 2. LinL;, (L nL2)*
2. What is the TG corresponding to the language of strings, over alphabet {a, b}, that are composed exactly of odd repetition of the substring ab, i.e. sample strings of this language are ab, ababab, ababab, etc.
Correct and detailed answer will be Upvoted else downvoted. Thank you!
Define a Prolog predicate project/3 that selects elements from a list by their position and collects them in a result list. For example, the goal of project( [2,4],[a,b,c,d],L) should produce the answer L=[b,d]. You can assume that the numbers in the first list are strictly increasing, that is, your implementation does not have to care about situations like project([1,1,2],..) or project([2,5,3],.).