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Prove or disprove the following statements: (a) ( ) ( ( )) = . (b) For every language L , (L +) = L .

Prove or disprove the following statements:

(a) ( ) ( ( )) = .

(b) For every language L , (L +) = L .

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(20 pt) Prove or disprove the following statements: (a) (@U*)no - (0*)) = . (b) For every language L CE, (L+)* = L

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