Let = {1, 2, 3, 4} and C = {w * | in w,
Question:
Let Σ = {1, 2, 3, 4} and C = {w ∈ Σ*| in w, the number of 1s equals the number of 2s, and the number of 3s equals the number of 4s}. Show that C is not context free.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 53% (15 reviews)
proof by pumping lemma for context ...View the full answer
Answered By
Kavya sri Tulabandula
I graduated high school from Krishna District in India in 2013. After high school I attended Rajiv Gandhi University of Knowledge Technologies Nuzvid where I got my +2 and Bachelor of computer science. I have recently completed my graduation . Now am currently working as software developer.i am doing front-end for websites.
I have 6 months tutoring experience for my juniors. I mostly deal with programming languages.
0.00
0 Reviews
10+ Question Solved
Related Book For
Question Posted:
Students also viewed these Computer science questions
-
Let X be the number of 1s and Y the number of 2s that occur in n rolls of a fair die. Compute Cov(X, Y).
-
Let U = {1, 2, 3, 4, 5, 6, 7}, with A = P(U), and let R be the subset relation on A. For B = {{1}, {2}, {2, 3}} A, determine each of the following. (a) The number of upper bounds of B that contain...
-
Let A = {1, 2, 3, 4, 5, 7, 8, 10, 11, 14, 17, 18}. a) How many subsets of A contain six elements? b) How many six-element subsets of A contain four even integers and two odd integers? c) How many...
-
Using the data provided in BE19-21, determine the ending balance of the plan assets and indicate the funded status of the plan at the end of the year under U.S. GAAP. In BE19-21 Armando Hernandez...
-
An all-day parking meter takes only dimes and quarters. If it contains 100 coins with a total value of $ 14.50, how many of each type of coin are in the meter?
-
Butler Corporation manufactures stereo headphones in Princeton, New Jersey. Brent Dean, director of cost management, is responsible for preparing the companys master budget. In compiling the budget...
-
When an American sales manager visits Malaysia, the business meetings he attends are conducted in English. Even so, he finds it difficult to follow the discussion due to: Frequent mispronunciations....
-
On January 1, 2007 the Stimpson Company sells land to Barker Company for $2.5 million, then immediately leases it back. The relevant information is as follows: 1. The land was carried on Stimpsons...
-
The following instructions apply to Questions 1 and 2. In each of the seven dropdown boxes that accompany these two questions, indicate how each event affects each of the elements of financial...
-
1. Messias (2014) outlined five epochs in the history of psychology. Consider the progression of these epochs and the factors that marked the end of one epoch and the beginning of the next. Which...
-
Let B be the language of all palindromes over {0,1} containing equal numbers of 0s and 1s. Show that B is not context free.
-
Show that F = {a i b j | i = k j for some positive integer k} is not context free.
-
Using game simulation to teach a course. In Engineering Management Research (May 2012), a simulation game approach was proposed to teach concepts in a course on production. The proposed game...
-
Let $N$ be a positive integer. Consider the relation $\circledast$ among pairs of integers $r, s \in \mathbb{Z}$ defined as $r \circledast s$ when $r-s$ is an integer multiple of $N$. Prove that...
-
Draw a circuit diagram for a typical home hair dryer. To which form (or forms) of energy is electric potential energy converted when you use the dryer?
-
Draw a vector field diagram for particles carrying charges \(+2 q\) and \(-q\) separated by a distance \(r\). Comment on the significance of the vector diagram.
-
(a) Show that the Jones matrix of a polarization analyzer set at angle \(\alpha\) to the \(X\)-axis is given by \[ \underline{\mathbf{L}}(\alpha)=\left[\begin{array}{cc} \cos ^{2} \alpha & \sin...
-
Let \(\mathbf{V}(t)\) be a linearly filtered complex-valued, wide-sense stationary random process with sample functions given by \[ \mathbf{v}(t)=\int_{-\infty}^{\infty} \mathbf{h}(t-\tau)...
-
Is the loop in Exercise 29 a pre-test loop or a post-test loop? Data from Exercise 29 Declare A As Integer Declare B As Integer Declare N As Integer Set A = 0 %3D For (B = 1; B
-
A manufacturer can sell product 1 at a profit of $20 per unit and product 2 at a profit of $40 per unit. Three units of raw material are needed to manufacture one unit of product 1, and six units of...
-
Let T be a complete binary tree such that position p stores an element with key f (p), where f (p) is the level number of p (see Section 8.3.2). Is tree T a heap? Why or why not?
-
At which positions of a heap might the largest key be stored?
-
Give an example of a worst-case sequence with n elements for insertion-sort, and show that insertion-sort runs in (n 2 ) time on such a sequence.
-
7 . 4 3 Buy - side vs . sell - side analysts' earnings forecasts. Refer to the Financial Analysts Journal ( July / August 2 0 0 8 ) study of earnings forecasts of buy - side and sell - side analysts,...
-
Bond P is a premium bond with a coupon of 8.6 percent , a YTM of 7.35 percent, and 15 years to maturity. Bond D is a discount bond with a coupon of 8.6 percent, a YTM of 10.35 percent, and also 15...
-
QUESTION 2 (25 MARKS) The draft financial statements of Sirius Bhd, Vega Bhd, Rigel Bhd and Capella for the year ended 31 December 2018 are as follows: Statement of Profit or Loss for the year ended...
Study smarter with the SolutionInn App