Show that L2 = {anb2nan : n ≥ 0} is not context-free using the pumping lemma.

Show that L2 = {aⁿb²ⁿaⁿ : n ≥ 0} is not context-free using the pumping lemma.

Expert Solution

venereology answered 9 months ago

Use the pumping lemma to show that the following languages are not regular. A a. A1={0^n...

Use the pumping lemma to show that the following languages are not regular. A a. A1={0^n 1^n 2^n | n≥0} b. A2 = {www | w ∈ {a,b}∗} A c. A3 ={a^2^n | n≥0} (Here, a^2^n means a string of 2^n a’s.) A ={a3n |n > 0 }

Using the pumping lemma, prove that the language {1^n | n is a prime number} is...

Using the pumping lemma, prove that the language {1^n | n is a prime number} is not regular.

1. Pumping Lemma: a. Is the following language a regular language? (Use pumping lemma in proof.)...

1. Pumping Lemma: a. Is the following language a regular language? (Use pumping lemma in proof.) L = {0n 1n 2n | n ≥ 0} b. What is (i.e., define) the CFL pumping lemma?

Use the pumping lemma to show that the following languages are not regular (c) (5 pts)...

Use the pumping lemma to show that the following languages are not regular (c) (5 pts) Let Σ = {0, 1, −, =} and SUB = {x = y − z | x, y, z are binary integers, and x is the result of the subtraction of z from y}. For example: 1 = 1 − 0, 10 = 11 − 01 are strings in SUB but not 1 = 1 − 1 or 11 = 11 − 10.

Prove that {anbamba2m+n:n,m≥1} is not regular using pumping lemma

prove using limit lemma that n^2 > nlogn given some epsilon > 0

let sigma = {a,b,c}. Use the Pumping Lemma to show that the language L defined below...

let sigma = {a,b,c}. Use the Pumping Lemma to show that the language L defined below is not regular. L={ a^p c(bb)^q : q > p >1}

Prove the following Closure Properties with respect to Context Free Languages. 1. Show that Context Free...

Prove the following Closure Properties with respect to Context Free Languages. 1. Show that Context Free Languages are Closed under union(∪), concatenation(·), kleene star(*). (Hint: If L1 and L2 are Context Free languages then write Context Free grammar equivalent to L1 ∪ L2, L1 · L2, L∗ 1 ) 2. Show that if L1 and L2 are Context Free Languages, then L1 ∩ L2 is not necessarily Context Free. (Hint: Use Proof by Counter Example)

Do not use Pumping Lemma for Regular Expression to prove the following. You may think of...

Do not use Pumping Lemma for Regular Expression to prove the following. You may think of Closure Properties of Regular Languages 1. Fix an alphabet. For any string w with |w| ≥ 2, let middle(w) be the string obtained by removing the first and last symbols of w. That is, Given L, a regular language on Σ, prove that f1(L) is regular, where f1(L) = {w : middle(w) ∈ L}

Closure under Context-Free Languages Show that the following operations are closed under context-free languages: union concatentation...

Closure under Context-Free Languages Show that the following operations are closed under context-free languages: union concatentation Kleene star

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