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Question

Consider alphabet ∑ = {0, 1}, the null/empty string λ and the sets of strings X0, X1 and X0.How are X1 and X2 are related ?

X0 = 1 X1
X1 = 0 X1 + 1 X2
X2 = 0 X1 + {λ}

Which one of the following represents the strings in X0?

a.

10 (0* + (10)*)1

b.

10 (0* + (10)*)*1

c.

10 (0* + (10)*)*1

d.

10 (0 + 10)*1 + 110 (0 + 10)*1

Answer: (c).10 (0* + (10)*)*1

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Q. Consider alphabet ∑ = {0, 1}, the null/empty string λ and the sets of strings X0, X1 and X0.How are X1 and X2 are related ? X0 = 1 X1 X1 = 0 X1 + 1 X2 X2 = 0 X1 + {λ} Which...

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