Prove that all CFGs with only the one nonterminal S and one or more live productions and

Question:

Prove that all CFGs with only the one nonterminal S and one or more live productions and one or more dead productions generate an infinite language.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Introduction To Computer Theory

ISBN: 9780471137726

2nd Edition

Authors: Daniel I. A. Cohen

Question Posted: Sep 05, 2022 02:32 AM

See More Questions

Prove in detail that if S and T are denumerable, then S T is denumerable.
Prove that if A is a diagonalizable matrix with only one eigenvalue , then a is of the form A = l. (Such a matrix is called a scalar matrix).
Prove that if a system with only rational coefficients and constants has a solution then it has at least one all-rational solution. Must it have infinitely many?
The dehydration butanol of alumina is carried out over a silica-alumina catalyst at 680K. CH3CH2CH2CH20H------->cat CH3CH=CHCH3 + H2O The rate law is -r Bu = KPBU/(1+KBuPBul with k= 0.054...
From the following data, plot the supply and demand curves and determine the equilibrium price and quantity: What would happen if the demand for pizzas tripled at each price? What would occur if the...
The September 30, 2018, adjusted trial balance of Buzzy?s, Inc., is shown next. Requirements 1. Prepare the September closing entries for Buzzy?s, Inc. 2. Calculate the ending balance in Retained...
Determine the maximum deflection of the beam caused only by bending, and caused by both bending and shear. Take $E=3 G$. I W 7
Ten weeks of data on the Commodity Futures Index are 7.35, 7.40, 7.55, 7.56, 7.60, 7.52, 7.52, 7.70, 7.62, and 7.55. a. Compute the exponential smoothing values for = 0.2. b. Compute the exponential...
Catch Exception The method divideValues() will throw an IllegalArgumentException if either parameter is 5. The method below takes two integer values as parameters and calls divideValues() in a try...
KAT Productions reports the following amounts for the fiscal year: depreciation expense, $11,000; sales revenues, $100,000; other expenses, $5,000; loss on sale of equipment, $1,000; marketing...
For the following grammars and target strings, decide whether or not the word is generated by the grammar using the CYK algorithm: S SS x = abba S a S bb
(i) Take a PDA for PALINDROMEX and intersect it with an FA for a*Xa*. (This means actually build the intersection machine.) (ii) Analyze the resultant machine and show that the language it accepts is...
True or false: Explain why the following statements are true or false: a. The economic maxim "There's no cash on the table" means that there are never any unexploited economic opportunities. b. Firms...
Catherine has worked for a company in Edmonton, Alberta since 2 0 1 2 . She earns $ 3 7 . 3 5 per hour, works 4 0 hours per pay period and is paid on a weekly basis. The company provides its...
curl F div F is F conservative (Y/N)? Fill in the following table. (Enter vectors in the form < a, b, c >) F xyzi + 8j+xyk 7ei 14ej+7ek
Night Shades, Incorporated, manufactures biotech sunglasses. The variable materials cost is $ 1 2 . 2 0 per unit, and the variable labor cost is $ 6 . 0 0 per unit. a . What is the variable cost per...
For companies that manufacture several products that use different proportions of manufacturing overhead resources, why does the use of activity-based costing provide more reliable product cost...
Cortez Company sells chairs that are used at computer stations. Its beginning inventory of chairs was 2 2 0 units at $ 4 9 per unit. During the year, Cortez made two batch purchases of this chair....
A sound wave with intensity 25 mW/m2 interferes constructively with a sound wave that has an intensity of 15 mW/m2. What is the intensity of the superposition of the two?
In your readings, there were many examples given for nurturing close family relationships in this ever-evolving technological society we live in Based upon your readings and research describe three...
Ten sources, six with a bit rate of 200 kbps and four with a bit rate of 400 kbps, are to be combined using multilevel TDM with no synchronizing bits. Answer the following questions about the final...
Which of the three multiplexing techniques is common for fiber-optic links? Explain the reason.
We have 14 sources, each creating 500 8-bit characters per second. Since only some of these sources are active at any moment, we use statistical TDM to combine these sources using character...
The market price of a security is $50. Its expected rate of return is 10%. The risk-free rate is 5%, and the market risk premium is 8%. What will the market price of the security be if its beta...
At the end of 2025, Aramis Company has accounts receivable of $800,000 and an allowance for doubtful accounts of $40,000. On January 16, 2026, Aramis Company determined that its receivable from...
Your father is 50 years old and will retire in 10 years. He expects to live for 25 years after he retires, until he is 85. He wants a fixed retirement income that has the same purchasing power at the...

Prove that all CFGs with only the one nonterminal S and one or more live productions and

Question:

Step by Step Answer:

We can show that all CFGs with only the one nonterminal S a...View the full answer

Introduction To Computer Theory

Students also viewed these Computer science questions