Question: Problem 4 Suppose L1 U L2 is regular and L1 is finite. Show that L2 is regular Hint: you might want to express L2 as

Problem 4 Suppose L1 U L2 is regular and L1 is finite. Show that L2 is regular Hint: you might want to express L2 as a combination of set operations over L1 U L2 and L
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