Question: Let G = ({S, X, Y, Z}, {a,b}, S, {S XYZ, X SYZ, Y SXZ, X a, Yb, Za}) be a context-free grammar. Prove

Let G = ({S, X, Y, Z}, {a,b}, S, {S XYZ, X

Let G = ({S, X, Y, Z}, {a,b}, S, {S XYZ, X SYZ, Y SXZ, X a, Yb, Za}) be a context-free grammar. Prove that if x E L(G), the length of x has the form 3+2k, where k 0.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Operating System Questions!

1. Choose the best answer. My sister loves to sing all the time. She will listen to music and mimic her favorite artists. she wants to try out for a contest

In Problem explain why the linear programming problem has no optimal solution. Maximize P = 18x, + 11x, subject to 3x - 2r2 s 6 -3x, + 2x, s 6 X1, X2 2 0

For what value or values of the constant m, if any, is a. Continuous at x = 0? b. Differentiable at x = 0? Give reasons for your answers. f(x) = (sin 2x, x 0 mx, x > 0

Topics: Anisotropic thermoelasticity, thermoelastic boundary value problems with cylindrical symmetry 1. Turbine blades are made from single crystal nickel superalloys. A nickel superalloy single...

Microkernel operating systems aim to address perceived modularity and reliability issues in traditional "monolithic" operating systems. (i) Describe the typical architecture of a microkernel...

"Fortran, Algol and Lisp invented most programming language concepts 50 years ago; adding the concept of object-orientation suffices to explain all programming languages to date". To what extent is...

In a Hopfield neural network configured as an associative memory, with all of its weights trained and fixed, what three possible behaviours may occur over time in configuration space as the net...

re Regular Languages and Finite Automata (a) Let L be the set of all strings over the alphabet {a, b} that end in a and do not contain the substring bb. Describe a deterministic finite automaton...

dee complete please help Complexity Theory (a) Defifine the set of Boolean expressions 2CNF and the language 2SAT over them. (b) For a Boolean expression in 2CNF, let G() be the directed graph with...

Describe, in detail, how the heapsort algorithm works. [10 marks] Show that the worst-case cost of heapsort is O(n log n). [6 marks] Would it be possible to implement a variant of heapsort based on a...

In Example 17.5, the formulas for Gly-Ala and Ala-Gly are written in their dipolar forms. At what pH do you expect these structures to predominate? Draw the expected structure of Gly-Ala in solution...

Is fractional distillation is used for the purification of water? Options: 1) True 2) False

3. Which of the following removes the fourth item from the lstFriends control? a. lstFriends.Items.Remove(4) b. lstFriends.Items.RemoveAt(4) c. lstFriends.Items.RemoveIndex(3) d. none of the above

1) At what rate should the following signals be sampled to fulfill the Nyquist criterion: a. sin(500 t) + cos(1000 t) + 1 b. ei 250 at + sin (nt)

3) If x[n] has the Fourier transform of X(elw), determine the Fourier transform of the following: . [ ] b. xH c. x[n]e/aw

For the data given in problem 1 above, assume that graphical checks for fit, constancy of variance, and normality are satisfied. Find: a. the standard error of the slope of the regression equation,...

The enzyme catalyzes the below reaction MAX -> MATT The kcat of the enzyme is 400 sec(-1). When [Et]= 10 nM and [MATT]=40M, the reaction velocity is 7.2 M s(-1). Calculate Km for substrate MAX.

The return of goods to the supplier will affect the purchase account. Question 27Answer True False

In Exercises 13 through 26, determine where the given function is increasing and decreasing, and where its graph is concave up and concave down. Find the relative extrema and inflection points, and...

A manufacturer of machinery parts determines that q units of a particular piece will be sold when the price is p = 110 q dollars per unit. The total cost of producing those q units is C(q) dollars,...

In Exercises 11 through 16, use the integral table (Table 6.1) to find the given integral. 5 dx 8 - 21

Does it matter whether capital and labor are substitutes or complements when figuring out what will happen to the demand for labor if the price of capital increases? Explain.

What historic legal cases support the behavioralist and structuralist views of the antitrust laws? What has been the recent view of antitrust laws?

What are the economic effects of imposition of a new occupational license or examination on a labor market?