3. Show that the family of regular languages is closed under the given operations below The nor o...
Define nor operation for the language as follows. nor(L1, L2) = {w : w E L1 or w E L2} Show that the family of regular languages is closed under the nor operation.
Define nor operation for the language as follows. nor(L1, L2) = {w : w E L1 or w E L2} Show that the family of regular languages is closed under the nor operation.
1. Complete the following exercises a) For Σ = {a, b} find regular expressions for the compliment of the following languages L = L(aa*bb) b) Let Li = L(ab*aa), L2 = L(a"bba"). Find a regular expression for (L1 n Ljl2. c) The symmetric difference of two sets Sı and S2 is defined as sı Θ s,-(x : x E Si or x E S2 but x is not in both S1 and S2). Show that the family of regular languages...
help please
pt). The symmetric difference of two languages Li and L2 is defined as ı and L2) Li Θ L2 = {xlx E L1 or x E L2, and x is not in both L Are regular languages closed under symmetric difference? If yes, give the otherwise, give a counterexample. the proof
Problem 3 [20 points Prove that the class of regular languages is closed under reverse. That is, show that if A is a regular language, then AR -[wR | w e A is also regular. [Hint: given a DFA M = (Q,Σ, δ, q0,F) that recognizes A, construct a new NFA (Q', Σ,8,6, F') that recognizes AR.]
-. If L and L2 are regular languages, show the the language BothOr Neither is also regular. Both Or Neither is the language that contains strings that are in both L1 and L, or in neither L or L2.
Prove that the class of regular languages is closed under intersection. That is, show that if ? and ? are regular languages, then ? ∩ ? = {? | ? ∈ ? ??? ? ∈ ?} is also regular. Hint:givenaDFA? =(?,Σ,?,?,?)thatrecognizes?andaDFA? =(?,Σ,?,?,?)that11111 22222 recognizes ?, construct a new DFA ? = (?, Σ, ?, ?0, ?) that recognizes ? ∩ ? and justify why your construction is correct.
5. (20 pt.) Prove that the class of regular languages is closed under reverse. That is, show that if A is a regular language, then AR = {wR W E A} is also regular. Hint: given a DFA M = (Q,2,8,90, F) that recognizes A, construct a new NFA N = (Q', 2,8', qo',F') that recognizes AR and justify why your construction is correct.
For each of the following claims, state whether it is True or False. Briefly explain your answer. (1) If Li and L2 are regular languages, then L1 L2 = {w:we (L1-L2) or w € (L2-L1)} is regular. (2) If Li and L2 are regular languages and L1 CL CL2, then L must be regular. (3) If Lis regular, then so is {xy : X E L andy & L}. (4) The union of a finite number of regular languages must...
Show that the family of context-free languages is closed under reversal.
Automata Question
(3) Show that the family of deterministic context-free languages is not closed under union and intersection.