Question: Question 1 Please! Problem 1: Let L1 and L2 be decidable languages over the same alphabet E. Consider language L L1 L2. (L consists of

Question 1 Please! Problem 1: Let L1 and L2 be decidable

Question 1 Please!

Problem 1: Let L1 and L2 be decidable languages over the same alphabet E. Consider language L L1 L2. (L consists of strings that are in L or in L2 but not in both.) Prove that L is decidable. Problem 2: Let L be a language over alphabet E. Prove that if both L and I (the complement of L) are recognizable, then L is decidable

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