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(d) Let L be any regular language. Use the Pumping Lemma to show that In > 1 such that for all w E L such that|> n, there is another string ve L such that lvl <n. (4 marks) (e) Let L be a regular language over {0,1}. Show how we can use the previous result to show that in order to determine whether or not L is empty, we need only test at most 2" – 1 strings. (2...
2. (10 points) Use the pumping lemma for context free grammars to show the following languages are not context-free. (a) (5 points) . (b) (5 points) L = {w ◦ Reverse(w) ◦ w | w ∈ {0,1}∗}. I free grammar for this language L. lemma for context free grammars to show t 1. {OʻPOT<)} L = {w • Reverse(w) w we {0,1}*). DA+hattha follaurino lano
Use the pumping lemma for context-free languages to prove that L3 is not a CFL. L3 = { w: w e{a,b,c}* and na(w) < nh(w) < nc(w) }.
Use the pumping lemma to show that the following language is non-regular: [a"b2n,n> 1) 1) usually we need to find a word in the language as an example, what length of the word we should use as the example? what are the three possible ways to choose substring y in the pumping lemma? if a language satisfy the pumping lemma, is this language a regular language? Why?
Prove that the following languages are not regular. You may use the pumping lemma and the closure of the class of regular languages under union, intersection, and compliment. a){} b){} c) { is not a palindrome} *d)} 0"1"0" m,n>0
Let S = {a, b}. Show that the language L = {w EX : na(w)<n(w) } is not regular.
(5) Use induction to show that Ig(n) <n for all n > 1.
Pumping lemma : There are 3 mistakes in this proof could you identify and show the corrections .please! (b) Proof attempt: L = {w(w)R WEL*}l is not regular We choose the word x = abba. Then 2 = 2n+2 > n and I EL (mirror axis between the two b-blocks). We consider all decompositions 2 = uvw where v > 1, Uv Sn: 1) (the a is not in u:) u = €, v = ab", w=b"a 2) (the a...
bn converges 18. Let (an)n=1 and (bn)n=1 be sequences in R. Show that if and lan – an+1 < oo, then anbr converges.
n! 5. Let an On+1 <1 for all n. (1Show that an (2) Use (1) to show that {an} decreases. (3) Is {an} convergent?