Question: Prove that the class NP is closed under union and intersection. That is, if L_1, L_2 epsilon NP, then L_1 L_2 epsilon NP, if L_1,

Prove that the class NP is closed under union and intersection.

Prove that the class NP is closed under union and intersection. That is, if L_1, L_2 epsilon NP, then L_1 L_2 epsilon NP, if L_1, L_2 epsilon NP, then L_1 L_2 epsilon NP

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